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258707472 = 2435389739
BaseRepresentation
bin11110110101110…
…01000000010000
3200000210200221020
433122321000100
51012212114342
641400555440
76260656122
oct1732710020
9600720836
10258707472
11123040831
1272782b80
13417a0b5a
1426505212
1517aa40ec
hexf6b9010

258707472 has 20 divisors (see below), whose sum is σ = 668327760. Its totient is φ = 86235808.

The previous prime is 258707459. The next prime is 258707497. The reversal of 258707472 is 274707852.

It is an alternating number because its digits alternate between even and odd.

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, 2694822 + ... + 2694917.

It is an arithmetic number, because the mean of its divisors is an integer number (33416388).

Almost surely, 2258707472 is an apocalyptic number.

It is an amenable number.

258707472 is an abundant number, since it is smaller than the sum of its proper divisors (409620288).

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

258707472 is a wasteful number, since it uses less digits than its factorization.

258707472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5389750 (or 5389744 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 42.

The square root of 258707472 is about 16084.3859690073. The cubic root of 258707472 is about 637.1910358288.

The spelling of 258707472 in words is "two hundred fifty-eight million, seven hundred seven thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 5389739 10779478 16169217 21558956 32338434 43117912 64676868 86235824 129353736 258707472