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242401900 = 225213199937
BaseRepresentation
bin11100111001011…
…00001001101100
3121220010021220011
432130230021230
5444023330100
640015303004
76002245036
oct1634541154
9556107804
10242401900
11114914154
126921aa64
133b2b21a0
142429cc56
1516432bba
hexe72c26c

242401900 has 72 divisors (see below), whose sum is σ = 569928800. Its totient is φ = 88957440.

The previous prime is 242401811. The next prime is 242401903. The reversal of 242401900 is 9104242.

242401900 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2424019002 = 117517362247220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242401903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258232 + ... + 259168.

Almost surely, 2242401900 is an apocalyptic number.

242401900 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 242401900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284964400).

242401900 is an abundant number, since it is smaller than the sum of its proper divisors (327526900).

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

242401900 is a wasteful number, since it uses less digits than its factorization.

242401900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 242401900 is about 15569.2613826090. The cubic root of 242401900 is about 623.5127517554.

The spelling of 242401900 in words is "two hundred forty-two million, four hundred one thousand, nine hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 199 260 325 398 650 796 937 995 1300 1874 1990 2587 3748 3980 4685 4975 5174 9370 9950 10348 12181 12935 18740 19900 23425 24362 25870 46850 48724 51740 60905 64675 93700 121810 129350 186463 243620 258700 304525 372926 609050 745852 932315 1218100 1864630 2424019 3729260 4661575 4848038 9323150 9696076 12120095 18646300 24240190 48480380 60600475 121200950 242401900