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112403031 = 31317198923
BaseRepresentation
bin1101011001100…
…10001001010111
321211111122222020
412230302021113
5212233344111
615053104223
72533260426
oct654621127
9254448866
10112403031
11584a3074
1231788073
131a397090
1410cdd2bd
159d04906
hex6b32257

112403031 has 32 divisors (see below), whose sum is σ = 179907840. Its totient is φ = 61668864.

The previous prime is 112403023. The next prime is 112403033. The reversal of 112403031 is 130304211.

It is not a de Polignac number, because 112403031 - 23 = 112403023 is a prime.

It is a super-2 number, since 2×1124030312 = 25268882755973922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 112403031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112403033) 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, 8136 + ... + 17058.

It is an arithmetic number, because the mean of its divisors is an integer number (5622120).

Almost surely, 2112403031 is an apocalyptic number.

112403031 is a deficient number, since it is larger than the sum of its proper divisors (67504809).

112403031 is a wasteful number, since it uses less digits than its factorization.

112403031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8975.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 112403031 is about 10602.0295698512. The cubic root of 112403031 is about 482.6059523736.

Adding to 112403031 its reverse (130304211), we get a palindrome (242707242).

It can be divided in two parts, 11 and 2403031, that added together give a palindrome (2403042).

The spelling of 112403031 in words is "one hundred twelve million, four hundred three thousand, thirty-one".

Divisors: 1 3 13 17 19 39 51 57 221 247 323 663 741 969 4199 8923 12597 26769 115999 151691 169537 347997 455073 508611 1971983 2203981 2882129 5915949 6611943 8646387 37467677 112403031