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151894220 = 22522334057
BaseRepresentation
bin10010000110110…
…11100011001100
3101120211000200212
421003123203030
5302341103340
623023341552
73523036202
oct1103334314
9346730625
10151894220
1178816415
1242a518b8
132561314a
141625d072
15d505a65
hex90db8cc

151894220 has 24 divisors (see below), whose sum is σ = 320417664. Its totient is φ = 60483456.

The previous prime is 151894207. The next prime is 151894241. The reversal of 151894220 is 22498151.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12569 + ... + 21488.

It is an arithmetic number, because the mean of its divisors is an integer number (13350736).

Almost surely, 2151894220 is an apocalyptic number.

151894220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151894220 is an abundant number, since it is smaller than the sum of its proper divisors (168523444).

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

151894220 is a wasteful number, since it uses less digits than its factorization.

151894220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34289 (or 34287 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 151894220 is about 12324.5373138305. The cubic root of 151894220 is about 533.5565012227.

The spelling of 151894220 in words is "one hundred fifty-one million, eight hundred ninety-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 223 446 892 1115 2230 4460 34057 68114 136228 170285 340570 681140 7594711 15189422 30378844 37973555 75947110 151894220