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20054310 = 23519151233
BaseRepresentation
bin100110010000…
…0000100100110
31101201212100020
41030200010212
520113214220
61553500010
7332313243
oct114400446
941655306
1020054310
1110358111
126871606
134202073
1429405ca
151b62040
hex1320126

20054310 has 64 divisors (see below), whose sum is σ = 51217920. Its totient is φ = 5011200.

The previous prime is 20054273. The next prime is 20054317. The reversal of 20054310 is 1345002.

It is a super-2 number, since 2×200543102 = 804350699152200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20054310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85954 + ... + 86186.

It is an arithmetic number, because the mean of its divisors is an integer number (800280).

Almost surely, 220054310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20054310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25608960).

20054310 is an abundant number, since it is smaller than the sum of its proper divisors (31163610).

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

20054310 is a wasteful number, since it uses less digits than its factorization.

20054310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20054310 is about 4478.2038810219. The cubic root of 20054310 is about 271.6872396295.

Adding to 20054310 its reverse (1345002), we get a palindrome (21399312).

The spelling of 20054310 in words is "twenty million, fifty-four thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 151 190 233 285 302 453 466 570 699 755 906 1165 1398 1510 2265 2330 2869 3495 4427 4530 5738 6990 8607 8854 13281 14345 17214 22135 26562 28690 35183 43035 44270 66405 70366 86070 105549 132810 175915 211098 351830 527745 668477 1055490 1336954 2005431 3342385 4010862 6684770 10027155 20054310