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64002428 = 227346649
BaseRepresentation
bin1111010000100…
…1100101111100
311110102122211022
43310021211330
5112341034203
610203443312
71405004000
oct364114574
9143378738
1064002428
1133144a76
1219526538
131034b979
148700700
155943a38
hex3d0997c

64002428 has 24 divisors (see below), whose sum is σ = 130620000. Its totient is φ = 27429024.

The previous prime is 64002413. The next prime is 64002451. The reversal of 64002428 is 82420046.

It is a junction number, because it is equal to n+sod(n) for n = 64002397 and 64002406.

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, 21953 + ... + 24696.

It is an arithmetic number, because the mean of its divisors is an integer number (5442500).

Almost surely, 264002428 is an apocalyptic number.

It is an amenable number.

64002428 is an abundant number, since it is smaller than the sum of its proper divisors (66617572).

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

64002428 is a wasteful number, since it uses less digits than its factorization.

64002428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46674 (or 46658 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 64002428 is about 8000.1517485608. The cubic root of 64002428 is about 400.0050582694.

The spelling of 64002428 in words is "sixty-four million, two thousand, four hundred twenty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 343 686 1372 46649 93298 186596 326543 653086 1306172 2285801 4571602 9143204 16000607 32001214 64002428