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20238158060 = 2251011907903
BaseRepresentation
bin10010110110010010…
…011100100011101100
31221020102122221200122
4102312102130203230
5312421432024220
613144113544112
71314343335161
oct226622344354
957212587618
1020238158060
118645a0476a
123b09875038
131ba6b32273
14d9db9c068
157d6b11425
hex4b649c8ec

20238158060 has 12 divisors (see below), whose sum is σ = 42500131968. Its totient is φ = 8095263216.

The previous prime is 20238158023. The next prime is 20238158071. The reversal of 20238158060 is 6085183202.

It is a self number, because there is not a number n which added to its sum of digits gives 20238158060.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505953932 + ... + 505953971.

It is an arithmetic number, because the mean of its divisors is an integer number (3541677664).

Almost surely, 220238158060 is an apocalyptic number.

20238158060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20238158060 is an abundant number, since it is smaller than the sum of its proper divisors (22261973908).

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

20238158060 is a wasteful number, since it uses less digits than its factorization.

20238158060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011907912 (or 1011907910 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 20238158060 in words is "twenty billion, two hundred thirty-eight million, one hundred fifty-eight thousand, sixty".

Divisors: 1 2 4 5 10 20 1011907903 2023815806 4047631612 5059539515 10119079030 20238158060