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65890045299 = 3131988920439
BaseRepresentation
bin111101010111010110…
…100100110101110011
320022001222202002221010
4331113112210311303
52034420322422144
650134112202003
74521550100301
oct752726446563
9208058662833
1065890045299
1125a422382a1
121092a539303
1362a0b083b0
143290c3d271
151aa98bb5b9
hexf575a4d73

65890045299 has 16 divisors (see below), whose sum is σ = 99590892800. Its totient is φ = 38413629216.

The previous prime is 65890045267. The next prime is 65890045301. The reversal of 65890045299 is 99254009856.

It is not a de Polignac number, because 65890045299 - 25 = 65890045267 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65890045099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44459479 + ... + 44460960.

It is an arithmetic number, because the mean of its divisors is an integer number (6224430800).

Almost surely, 265890045299 is an apocalyptic number.

65890045299 is a deficient number, since it is larger than the sum of its proper divisors (33700847501).

65890045299 is a wasteful number, since it uses less digits than its factorization.

65890045299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88920474.

The product of its (nonzero) digits is 6998400, while the sum is 57.

The spelling of 65890045299 in words is "sixty-five billion, eight hundred ninety million, forty-five thousand, two hundred ninety-nine".

Divisors: 1 3 13 19 39 57 247 741 88920439 266761317 1155965707 1689488341 3467897121 5068465023 21963348433 65890045299