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151386656 = 255389261
BaseRepresentation
bin10010000010111…
…11101000100000
3101112212020110012
421001133220200
5302223333111
623004424052
73515523341
oct1101375040
9345766405
10151386656
11784aa043
1242848028
1325496105
141616a0c8
15d45548b
hex905fa20

151386656 has 24 divisors (see below), whose sum is σ = 303669324. Its totient is φ = 74264320.

The previous prime is 151386611. The next prime is 151386659. The reversal of 151386656 is 656683151.

It can be written as a sum of positive squares in 2 ways, for example, as 150896656 + 490000 = 12284^2 + 700^2 .

It is a super-2 number, since 2×1513866562 = 45835839229724672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (151386659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42935 + ... + 46326.

Almost surely, 2151386656 is an apocalyptic number.

151386656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

151386656 is an abundant number, since it is smaller than the sum of its proper divisors (152282668).

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

151386656 is an equidigital number, since it uses as much as digits as its factorization.

151386656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89324 (or 89316 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The square root of 151386656 is about 12303.9284783357. The cubic root of 151386656 is about 532.9615339255.

The spelling of 151386656 in words is "one hundred fifty-one million, three hundred eighty-six thousand, six hundred fifty-six".

Divisors: 1 2 4 8 16 32 53 106 212 424 848 1696 89261 178522 357044 714088 1428176 2856352 4730833 9461666 18923332 37846664 75693328 151386656