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65428692 = 2237778913
BaseRepresentation
bin1111100110010…
…1110011010100
311120010010021220
43321211303110
5113222204232
610254210340
71423064130
oct371456324
9146103256
1065428692
1133a295aa
1219ab39b0
131072ac04
1489923c0
155b2642c
hex3e65cd4

65428692 has 24 divisors (see below), whose sum is σ = 174476736. Its totient is φ = 18693888.

The previous prime is 65428679. The next prime is 65428703. The reversal of 65428692 is 29682456.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389373 + ... + 389540.

It is an arithmetic number, because the mean of its divisors is an integer number (7269864).

Almost surely, 265428692 is an apocalyptic number.

It is an amenable number.

65428692 is an abundant number, since it is smaller than the sum of its proper divisors (109048044).

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

65428692 is a wasteful number, since it uses less digits than its factorization.

65428692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778927 (or 778925 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 65428692 is about 8088.8004054990. The cubic root of 65428692 is about 402.9545643083.

The spelling of 65428692 in words is "sixty-five million, four hundred twenty-eight thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 778913 1557826 2336739 3115652 4673478 5452391 9346956 10904782 16357173 21809564 32714346 65428692