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65495420 = 2253274771
BaseRepresentation
bin1111100111011…
…0000101111100
311120020111211022
43321312011330
5113231323140
610255443312
71423462514
oct371660574
9146214738
1065495420
1133a74751
1219b26538
13107523b3
1489ac844
155b3b0b5
hex3e7617c

65495420 has 12 divisors (see below), whose sum is σ = 137540424. Its totient is φ = 26198160.

The previous prime is 65495411. The next prime is 65495447. The reversal of 65495420 is 2459456.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1637366 + ... + 1637405.

It is an arithmetic number, because the mean of its divisors is an integer number (11461702).

Almost surely, 265495420 is an apocalyptic number.

It is an amenable number.

65495420 is an abundant number, since it is smaller than the sum of its proper divisors (72045004).

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

65495420 is a wasteful number, since it uses less digits than its factorization.

65495420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3274780 (or 3274778 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 65495420 is about 8092.9240698279. The cubic root of 65495420 is about 403.0915032961.

The spelling of 65495420 in words is "sixty-five million, four hundred ninety-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 3274771 6549542 13099084 16373855 32747710 65495420