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20313077352 = 2335197162859
BaseRepresentation
bin10010111010110000…
…001111011001101000
31221102122122020122020
4102322300033121220
5313100121433402
613155351424440
71316243210601
oct227260173150
957378566566
1020313077352
118684225737
123b2a985120
131bb9503bc9
14da9b00da8
157dd4ae8bc
hex4bac0f668

20313077352 has 32 divisors (see below), whose sum is σ = 50792776800. Its totient is φ = 6769681344.

The previous prime is 20313077339. The next prime is 20313077381. The reversal of 20313077352 is 25377031302.

It is a super-2 number, since 2×203130773522 (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 43299 + ... + 206157.

It is an arithmetic number, because the mean of its divisors is an integer number (1587274275).

Almost surely, 220313077352 is an apocalyptic number.

It is an amenable number.

20313077352 is an abundant number, since it is smaller than the sum of its proper divisors (30479699448).

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

20313077352 is a wasteful number, since it uses less digits than its factorization.

20313077352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168065 (or 168061 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 33.

The spelling of 20313077352 in words is "twenty billion, three hundred thirteen million, seventy-seven thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 5197 10394 15591 20788 31182 41576 62364 124728 162859 325718 488577 651436 977154 1302872 1954308 3908616 846378223 1692756446 2539134669 3385512892 5078269338 6771025784 10156538676 20313077352