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72034944 = 2731491259
BaseRepresentation
bin1000100101100…
…10101010000000
312000112202100220
410102302222000
5121420104234
611051543040
71533200262
oct422625200
9160482326
1072034944
1137730a13
122015aa80
1311c01b37
1497d1b32
1564cda49
hex44b2a80

72034944 has 64 divisors (see below), whose sum is σ = 192780000. Its totient is φ = 23831552.

The previous prime is 72034913. The next prime is 72034957. The reversal of 72034944 is 44943027.

It is a tau number, because it is divible by the number of its divisors (64).

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, 56587 + ... + 57845.

Almost surely, 272034944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72034944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96390000).

72034944 is an abundant number, since it is smaller than the sum of its proper divisors (120745056).

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

72034944 is a wasteful number, since it uses less digits than its factorization.

72034944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425 (or 1413 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 72034944 is about 8487.3402194091. The cubic root of 72034944 is about 416.0840559930.

The spelling of 72034944 in words is "seventy-two million, thirty-four thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 149 192 298 384 447 596 894 1192 1259 1788 2384 2518 3576 3777 4768 5036 7152 7554 9536 10072 14304 15108 19072 20144 28608 30216 40288 57216 60432 80576 120864 161152 187591 241728 375182 483456 562773 750364 1125546 1500728 2251092 3001456 4502184 6002912 9004368 12005824 18008736 24011648 36017472 72034944