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242444321123420 = 225135232609683381
BaseRepresentation
bin110111001000000001110111…
…101000110110110001011100
31011210102110011120222122022102
4313020001313220312301130
5223234201432201422140
62215345214502304232
7102032011201202603
oct6710016750666134
91153373146878272
10242444321123420
1170283071844619
1223237400728078
13a53852aab5650
1443c2521184a3a
151d067ee6c1e15
hexdc8077a36c5c

242444321123420 has 96 divisors (see below), whose sum is σ = 549556888386240. Its totient is φ = 89312364564480.

The previous prime is 242444321123413. The next prime is 242444321123437. The reversal of 242444321123420 is 24321123444242.

242444321123420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 354430130 + ... + 355113510.

It is an arithmetic number, because the mean of its divisors is an integer number (5724550920690).

Almost surely, 2242444321123420 is an apocalyptic number.

242444321123420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242444321123420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274778444193120).

242444321123420 is an abundant number, since it is smaller than the sum of its proper divisors (307112567262820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242444321123420 is a wasteful number, since it uses less digits than its factorization.

242444321123420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686535 (or 686533 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 38.

Adding to 242444321123420 its reverse (24321123444242), we get a palindrome (266765444567662).

The spelling of 242444321123420 in words is "two hundred forty-two trillion, four hundred forty-four billion, three hundred twenty-one million, one hundred twenty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 523 1046 2092 2609 2615 5218 5230 6799 10436 10460 13045 13598 26090 27196 33917 33995 52180 67834 67990 135668 135980 169585 339170 678340 683381 1364507 1366762 2729014 2733524 3416905 5458028 6822535 6833810 8883953 13645070 13667620 17738591 17767906 27290140 35477182 35535812 44419765 70954364 88692955 88839530 177385910 177679060 354771820 357408263 714816526 1429633052 1782941029 1787041315 3565882058 3574082630 4646307419 7131764116 7148165260 8914705145 9292614838 17829410290 18585229676 23178233377 23231537095 35658820580 46356466754 46463074190 92712933508 92926148380 115891166885 231782333770 463564667540 932478158167 1864956316334 3729912632668 4662390790835 9324781581670 12122216056171 18649563163340 24244432112342 48488864224684 60611080280855 121222160561710 242444321123420