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13112103100 = 2252131121031
BaseRepresentation
bin11000011011000101…
…01101000010111100
31020211210201212000011
430031202231002330
5203323144244400
610005033513004
7642634015555
oct141542550274
936753655004
1013112103100
115619493148
12265b272764
13130c6923b5
148c55cb32c
1551b1e78ba
hex30d8ad0bc

13112103100 has 18 divisors (see below), whose sum is σ = 28453263944. Its totient is φ = 5244841200.

The previous prime is 13112103079. The next prime is 13112103119. The reversal of 13112103100 is 130121131.

It is a super-2 number, since 2×131121031002 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65560416 + ... + 65560615.

Almost surely, 213112103100 is an apocalyptic number.

13112103100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13112103100 is an abundant number, since it is smaller than the sum of its proper divisors (15341160844).

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

13112103100 is a wasteful number, since it uses less digits than its factorization.

13112103100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131121045 (or 131121038 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13112103100 its reverse (130121131), we get a palindrome (13242224231).

The spelling of 13112103100 in words is "thirteen billion, one hundred twelve million, one hundred three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 131121031 262242062 524484124 655605155 1311210310 2622420620 3278025775 6556051550 13112103100