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72085270 = 2517224943
BaseRepresentation
bin1000100101111…
…10111100010110
312000122022101211
410102332330112
5121423212040
611053012034
71533500065
oct422767426
9160568354
1072085270
1137765804
122018401a
1311c1ba0a
1498061dc
1564dd8ea
hex44bef16

72085270 has 24 divisors (see below), whose sum is σ = 137840544. Its totient is φ = 27136896.

The previous prime is 72085267. The next prime is 72085303. The reversal of 72085270 is 7258027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9582 + ... + 15361.

It is an arithmetic number, because the mean of its divisors is an integer number (5743356).

Almost surely, 272085270 is an apocalyptic number.

72085270 is a deficient number, since it is larger than the sum of its proper divisors (65755274).

72085270 is a wasteful number, since it uses less digits than its factorization.

72085270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24984 (or 24967 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 72085270 is about 8490.3044703945. The cubic root of 72085270 is about 416.1809301419.

The spelling of 72085270 in words is "seventy-two million, eighty-five thousand, two hundred seventy".

Divisors: 1 2 5 10 17 34 85 170 289 578 1445 2890 24943 49886 124715 249430 424031 848062 2120155 4240310 7208527 14417054 36042635 72085270