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113011512 = 233172312043
BaseRepresentation
bin1101011110001…
…10101100111000
321212122120122120
412233012230320
5212412332022
615114121240
72541403425
oct657065470
9255576576
10113011512
1158879249
1231a20220
131a54b023
141101ad4c
159dc4d5c
hex6bc6b38

113011512 has 64 divisors (see below), whose sum is σ = 312180480. Its totient is φ = 33910272.

The previous prime is 113011477. The next prime is 113011517. The reversal of 113011512 is 215110311.

It is a super-2 number, since 2×1130115122 = 25543203689052288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113011491 and 113011500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113011517) 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, 3363 + ... + 15405.

It is an arithmetic number, because the mean of its divisors is an integer number (4877820).

Almost surely, 2113011512 is an apocalyptic number.

113011512 is a gapful number since it is divisible by the number (12) 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 113011512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156090240).

113011512 is an abundant number, since it is smaller than the sum of its proper divisors (199168968).

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

113011512 is a wasteful number, since it uses less digits than its factorization.

113011512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12092 (or 12088 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 113011512 is about 10630.6872778763. The cubic root of 113011512 is about 483.4752297875.

Adding to 113011512 its reverse (215110311), we get a palindrome (328121823).

The spelling of 113011512 in words is "one hundred thirteen million, eleven thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 17 23 24 34 46 51 68 69 92 102 136 138 184 204 276 391 408 552 782 1173 1564 2346 3128 4692 9384 12043 24086 36129 48172 72258 96344 144516 204731 276989 289032 409462 553978 614193 818924 830967 1107956 1228386 1637848 1661934 2215912 2456772 3323868 4708813 4913544 6647736 9417626 14126439 18835252 28252878 37670504 56505756 113011512