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20179276852 = 227472326251
BaseRepresentation
bin10010110010110001…
…110101010000110100
31221002022212110212011
4102302301311100310
5312311343324402
613134211534004
71313030010640
oct226261652064
957068773764
1020179276852
118615748409
123ab1bba304
131b97887607
14d96031c20
157d187eed7
hex4b2c75434

20179276852 has 36 divisors (see below), whose sum is σ = 41235642784. Its totient is φ = 8464230000.

The previous prime is 20179276753. The next prime is 20179276853. The reversal of 20179276852 is 25867297102.

It is a junction number, because it is equal to n+sod(n) for n = 20179276796 and 20179276805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20179276853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101274 + ... + 224977.

Almost surely, 220179276852 is an apocalyptic number.

It is an amenable number.

20179276852 is an abundant number, since it is smaller than the sum of its proper divisors (21056365932).

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

20179276852 is a wasteful number, since it uses less digits than its factorization.

20179276852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326356 (or 326307 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 20179276852 in words is "twenty billion, one hundred seventy-nine million, two hundred seventy-six thousand, eight hundred fifty-two".

Divisors: 1 2 4 7 14 28 47 94 188 329 658 1316 2209 4418 8836 15463 30926 61852 326251 652502 1305004 2283757 4567514 9135028 15333797 30667594 61335188 107336579 214673158 429346316 720688459 1441376918 2882753836 5044819213 10089638426 20179276852