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115438356 = 223211226501
BaseRepresentation
bin1101110000101…
…11001100010100
322001012212122200
412320113030110
5214023011411
615242124500
72601131655
oct670271424
9261185580
10115438356
115a186600
12327b0730
131abba827
141148d52c
15a203e56
hex6e17314

115438356 has 54 divisors (see below), whose sum is σ = 320753706. Its totient is φ = 34980000.

The previous prime is 115438307. The next prime is 115438363. The reversal of 115438356 is 653834511.

It can be written as a sum of positive squares in only one way, i.e., 91584900 + 23853456 = 9570^2 + 4884^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 115438356.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8895 + ... + 17606.

Almost surely, 2115438356 is an apocalyptic number.

It is an amenable number.

115438356 is an abundant number, since it is smaller than the sum of its proper divisors (205315350).

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

115438356 is a wasteful number, since it uses less digits than its factorization.

115438356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26533 (or 26517 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 115438356 is about 10744.2243089020. The cubic root of 115438356 is about 486.9115139575.

The spelling of 115438356 in words is "one hundred fifteen million, four hundred thirty-eight thousand, three hundred fifty-six".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 121 132 198 242 363 396 484 726 1089 1452 2178 4356 26501 53002 79503 106004 159006 238509 291511 318012 477018 583022 874533 954036 1166044 1749066 2623599 3206621 3498132 5247198 6413242 9619863 10494396 12826484 19239726 28859589 38479452 57719178 115438356