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72076752 = 24321145503
BaseRepresentation
bin1000100101111…
…00110111010000
312000121212201100
410102330313100
5121422424002
611052504400
71533433206
oct422746720
9160555640
1072076752
113775a370
122017b100
1311c17b87
149803076
1564db11c
hex44bcdd0

72076752 has 60 divisors (see below), whose sum is σ = 220057344. Its totient is φ = 21840960.

The previous prime is 72076751. The next prime is 72076757. The reversal of 72076752 is 25767027.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72076751) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 21168 + ... + 24335.

Almost surely, 272076752 is an apocalyptic number.

72076752 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

72076752 is an abundant number, since it is smaller than the sum of its proper divisors (147980592).

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

72076752 is a wasteful number, since it uses less digits than its factorization.

72076752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45528 (or 45519 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 72076752 is about 8489.8028245655. The cubic root of 72076752 is about 416.1645367381.

The spelling of 72076752 in words is "seventy-two million, seventy-six thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 33 36 44 48 66 72 88 99 132 144 176 198 264 396 528 792 1584 45503 91006 136509 182012 273018 364024 409527 500533 546036 728048 819054 1001066 1092072 1501599 1638108 2002132 2184144 3003198 3276216 4004264 4504797 6006396 6552432 8008528 9009594 12012792 18019188 24025584 36038376 72076752