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20392876284 = 22311277557731
BaseRepresentation
bin10010111111100000…
…101001100011111100
31221122012210110012020
4102333200221203330
5313231034020114
613211322040140
71321232405544
oct227740514374
957565713166
1020392876284
118715279870
123b51649050
131bccbc3901
14db6554324
157e54c3aa9
hex4bf8298fc

20392876284 has 48 divisors (see below), whose sum is σ = 52096630656. Its totient is φ = 6157339200.

The previous prime is 20392876277. The next prime is 20392876313. The reversal of 20392876284 is 48267829302.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242302 + ... + 315429.

It is an arithmetic number, because the mean of its divisors is an integer number (1085346472).

Almost surely, 220392876284 is an apocalyptic number.

It is an amenable number.

20392876284 is an abundant number, since it is smaller than the sum of its proper divisors (31703754372).

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

20392876284 is a wasteful number, since it uses less digits than its factorization.

20392876284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558026 (or 558024 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 20392876284 in words is "twenty billion, three hundred ninety-two million, eight hundred seventy-six thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 277 554 831 1108 1662 3047 3324 6094 9141 12188 18282 36564 557731 1115462 1673193 2230924 3346386 6135041 6692772 12270082 18405123 24540164 36810246 73620492 154491487 308982974 463474461 617965948 926948922 1699406357 1853897844 3398812714 5098219071 6797625428 10196438142 20392876284