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64828842 = 2313831139
BaseRepresentation
bin1111011101001…
…1010110101010
311111222122110020
43313103112222
5113044010332
610233301310
71415015241
oct367232652
9144878406
1064828842
1133659961
1219864836
131057ab80
148877958
155a5882c
hex3dd35aa

64828842 has 16 divisors (see below), whose sum is σ = 139631520. Its totient is φ = 19947312.

The previous prime is 64828793. The next prime is 64828859. The reversal of 64828842 is 24882846.

It is a junction number, because it is equal to n+sod(n) for n = 64828794 and 64828803.

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, 415492 + ... + 415647.

It is an arithmetic number, because the mean of its divisors is an integer number (8726970).

Almost surely, 264828842 is an apocalyptic number.

64828842 is an abundant number, since it is smaller than the sum of its proper divisors (74802678).

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

64828842 is a wasteful number, since it uses less digits than its factorization.

64828842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831157.

The product of its digits is 196608, while the sum is 42.

The square root of 64828842 is about 8051.6359828298. The cubic root of 64828842 is about 401.7193531396.

The spelling of 64828842 in words is "sixty-four million, eight hundred twenty-eight thousand, eight hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 831139 1662278 2493417 4986834 10804807 21609614 32414421 64828842