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12104511400 = 235260522557
BaseRepresentation
bin10110100010111110…
…00010111110101000
31011020120202220001001
423101133002332220
5144242223331100
65321041404344
7605650435462
oct132137027650
934216686031
1012104511400
115151754633
1224199396b4
1311ab9c78a7
1482b865132
154aca16d6a
hex2d17c2fa8

12104511400 has 24 divisors (see below), whose sum is σ = 28142989470. Its totient is φ = 4841804480.

The previous prime is 12104511389. The next prime is 12104511407. The reversal of 12104511400 is 411540121.

It can be written as a sum of positive squares in 3 ways, for example, as 11397270564 + 707240836 = 106758^2 + 26594^2 .

It is not an unprimeable number, because it can be changed into a prime (12104511407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30261079 + ... + 30261478.

Almost surely, 212104511400 is an apocalyptic number.

12104511400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12104511400 is an abundant number, since it is smaller than the sum of its proper divisors (16038478070).

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

12104511400 is a wasteful number, since it uses less digits than its factorization.

12104511400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60522573 (or 60522564 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The spelling of 12104511400 in words is "twelve billion, one hundred four million, five hundred eleven thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 60522557 121045114 242090228 302612785 484180456 605225570 1210451140 1513063925 2420902280 3026127850 6052255700 12104511400