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20124344130 = 2351160982861
BaseRepresentation
bin10010101111100000…
…010001111101000010
31220221111111121022220
4102233200101331002
5312203313003010
613124530311510
71311462050142
oct225740217502
956844447286
1020124344130
118597738670
123a97728596
131b89392c47
14d8ca12922
157cbb2d970
hex4af811f42

20124344130 has 32 divisors (see below), whose sum is σ = 52689192768. Its totient is φ = 4878628800.

The previous prime is 20124344117. The next prime is 20124344147. The reversal of 20124344130 is 3144342102.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20124344130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30491101 + ... + 30491760.

It is an arithmetic number, because the mean of its divisors is an integer number (1646537274).

Almost surely, 220124344130 is an apocalyptic number.

20124344130 is an abundant number, since it is smaller than the sum of its proper divisors (32564848638).

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

20124344130 is a wasteful number, since it uses less digits than its factorization.

20124344130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60982882.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20124344130 its reverse (3144342102), we get a palindrome (23268686232).

The spelling of 20124344130 in words is "twenty billion, one hundred twenty-four million, three hundred forty-four thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 60982861 121965722 182948583 304914305 365897166 609828610 670811471 914742915 1341622942 1829485830 2012434413 3354057355 4024868826 6708114710 10062172065 20124344130