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538118232 = 233375910271
BaseRepresentation
bin100000000100110…
…000100001011000
31101111120020102220
4200010300201120
52100224240412
6125221424040
716222633551
oct4004604130
91344506386
10538118232
11256832213
1213026b020
1387640272
1451679328
153239768c
hex20130858

538118232 has 64 divisors (see below), whose sum is σ = 1405209600. Its totient is φ = 171550080.

The previous prime is 538118227. The next prime is 538118237. The reversal of 538118232 is 232811835.

It is an interprime number because it is at equal distance from previous prime (538118227) and next prime (538118237).

It is a super-2 number, since 2×5381182322 = 579142463221611648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 538118193 and 538118202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538118237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47257 + ... + 57527.

It is an arithmetic number, because the mean of its divisors is an integer number (21956400).

Almost surely, 2538118232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538118232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (702604800).

538118232 is an abundant number, since it is smaller than the sum of its proper divisors (867091368).

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

538118232 is a wasteful number, since it uses less digits than its factorization.

538118232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10376 (or 10372 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 538118232 is about 23197.3755412116. The cubic root of 538118232 is about 813.3782759065.

The spelling of 538118232 in words is "five hundred thirty-eight million, one hundred eighteen thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 37 59 74 111 118 148 177 222 236 296 354 444 472 708 888 1416 2183 4366 6549 8732 10271 13098 17464 20542 26196 30813 41084 52392 61626 82168 123252 246504 380027 605989 760054 1140081 1211978 1520108 1817967 2280162 2423956 3040216 3635934 4560324 4847912 7271868 9120648 14543736 22421593 44843186 67264779 89686372 134529558 179372744 269059116 538118232