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55897042308 = 22310214562279
BaseRepresentation
bin110100000011101110…
…010010110110000100
312100021120010221220020
4310003232102312010
51403434120323213
641402335335140
74016116006632
oct640356226604
9170246127806
1055897042308
1121784472238
12a9bb9814b0
13536a6ca983
1429c39bc352
1516c2441923
hexd03b92d84

55897042308 has 24 divisors (see below), whose sum is σ = 130554204480. Its totient is φ = 18614094240.

The previous prime is 55897042297. The next prime is 55897042309. The reversal of 55897042308 is 80324079855.

It is not an unprimeable number, because it can be changed into a prime (55897042309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2268888 + ... + 2293391.

It is an arithmetic number, because the mean of its divisors is an integer number (5439758520).

Almost surely, 255897042308 is an apocalyptic number.

It is an amenable number.

55897042308 is an abundant number, since it is smaller than the sum of its proper divisors (74657162172).

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

55897042308 is a wasteful number, since it uses less digits than its factorization.

55897042308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4563307 (or 4563305 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 55897042308 in words is "fifty-five billion, eight hundred ninety-seven million, forty-two thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 1021 2042 3063 4084 6126 12252 4562279 9124558 13686837 18249116 27373674 54747348 4658086859 9316173718 13974260577 18632347436 27948521154 55897042308