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72270088 = 23112928319
BaseRepresentation
bin1000100111011…
…00000100001000
312000222200220221
410103230010020
5122000120323
611100555424
71535166652
oct423540410
9160880827
1072270088
1137881650
1220252b74
1311c84b87
1498536d2
15652855d
hex44ec108

72270088 has 32 divisors (see below), whose sum is σ = 152928000. Its totient is φ = 31716160.

The previous prime is 72270061. The next prime is 72270097. The reversal of 72270088 is 88007227.

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, 11608 + ... + 16711.

It is an arithmetic number, because the mean of its divisors is an integer number (4779000).

Almost surely, 272270088 is an apocalyptic number.

It is an amenable number.

72270088 is an abundant number, since it is smaller than the sum of its proper divisors (80657912).

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

72270088 is a wasteful number, since it uses less digits than its factorization.

72270088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28365 (or 28361 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 72270088 is about 8501.1815649355. The cubic root of 72270088 is about 416.5363059566.

The spelling of 72270088 in words is "seventy-two million, two hundred seventy thousand, eighty-eight".

Divisors: 1 2 4 8 11 22 29 44 58 88 116 232 319 638 1276 2552 28319 56638 113276 226552 311509 623018 821251 1246036 1642502 2492072 3285004 6570008 9033761 18067522 36135044 72270088