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258064628 = 22271317751
BaseRepresentation
bin11110110000111…
…00000011110100
3122222121001010012
433120130003310
51012031032003
641335115352
76252341003
oct1730340364
9588531105
10258064628
11122741858
1272512b58
1341607383
14263b8c3a
15179c88d8
hexf61c0f4

258064628 has 24 divisors (see below), whose sum is σ = 455314944. Its totient is φ = 127980000.

The previous prime is 258064627. The next prime is 258064657. The reversal of 258064628 is 826460852.

258064628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258064621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343253 + ... + 344003.

It is an arithmetic number, because the mean of its divisors is an integer number (18971456).

Almost surely, 2258064628 is an apocalyptic number.

It is an amenable number.

258064628 is a deficient number, since it is larger than the sum of its proper divisors (197250316).

258064628 is a wasteful number, since it uses less digits than its factorization.

258064628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343 (or 1341 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 258064628 is about 16064.3900600054. The cubic root of 258064628 is about 636.6628276893.

The spelling of 258064628 in words is "two hundred fifty-eight million, sixty-four thousand, six hundred twenty-eight".

Divisors: 1 2 4 271 317 542 634 751 1084 1268 1502 3004 85907 171814 203521 238067 343628 407042 476134 814084 952268 64516157 129032314 258064628