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113790206172 = 22331305887651
BaseRepresentation
bin110100111111001101…
…1001100000011011100
3101212201020100101210110
41221332123030003130
53331020243044142
6124135143010020
711135553536136
oct1517633140334
9355636311713
10113790206172
1144292672105
121a078139910
13a965815556
145716726056
152e5ec2b99c
hex1a7e6cc0dc

113790206172 has 24 divisors (see below), whose sum is σ = 274075336192. Its totient is φ = 36706518000.

The previous prime is 113790206143. The next prime is 113790206287. The reversal of 113790206172 is 271602097311.

It is a super-2 number, since 2×1137902061722 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 113790206172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152943454 + ... + 152944197.

Almost surely, 2113790206172 is an apocalyptic number.

113790206172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113790206172 is an abundant number, since it is smaller than the sum of its proper divisors (160285130020).

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

113790206172 is a wasteful number, since it uses less digits than its factorization.

113790206172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305887689 (or 305887687 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 39.

The spelling of 113790206172 in words is "one hundred thirteen billion, seven hundred ninety million, two hundred six thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 305887651 611775302 917662953 1223550604 1835325906 3670651812 9482517181 18965034362 28447551543 37930068724 56895103086 113790206172