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65390108 = 2272333623
BaseRepresentation
bin1111100101110…
…0011000011100
311120001011100212
43321130120130
5113214440413
610253311552
71422543500
oct371343034
9146034325
1065390108
1133a02613
1219a955b8
1310716494
148982300
155b19ca8
hex3e5c61c

65390108 has 18 divisors (see below), whose sum is σ = 133115976. Its totient is φ = 28024248.

The previous prime is 65390107. The next prime is 65390111. The reversal of 65390108 is 80109356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65390107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166616 + ... + 167007.

It is an arithmetic number, because the mean of its divisors is an integer number (7395332).

Almost surely, 265390108 is an apocalyptic number.

It is an amenable number.

65390108 is an abundant number, since it is smaller than the sum of its proper divisors (67725868).

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

65390108 is a wasteful number, since it uses less digits than its factorization.

65390108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333641 (or 333632 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 65390108 is about 8086.4150276869. The cubic root of 65390108 is about 402.8753398599.

The spelling of 65390108 in words is "sixty-five million, three hundred ninety thousand, one hundred eight".

Divisors: 1 2 4 7 14 28 49 98 196 333623 667246 1334492 2335361 4670722 9341444 16347527 32695054 65390108