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72084372 = 22329207139
BaseRepresentation
bin1000100101111…
…10101110010100
312000122021011120
410102332232110
5121423144442
611053003540
71533464343
oct422765624
9160567146
1072084372
1137765068
12201835b0
1311c1b499
149805b5a
1564dd4ec
hex44beb94

72084372 has 24 divisors (see below), whose sum is σ = 173997600. Its totient is φ = 23199456.

The previous prime is 72084329. The next prime is 72084379. The reversal of 72084372 is 27348027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72084379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103222 + ... + 103917.

It is an arithmetic number, because the mean of its divisors is an integer number (7249900).

Almost surely, 272084372 is an apocalyptic number.

It is an amenable number.

72084372 is an abundant number, since it is smaller than the sum of its proper divisors (101913228).

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

72084372 is a wasteful number, since it uses less digits than its factorization.

72084372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207175 (or 207173 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 72084372 is about 8490.2515863783. The cubic root of 72084372 is about 416.1792019477.

The spelling of 72084372 in words is "seventy-two million, eighty-four thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 207139 414278 621417 828556 1242834 2485668 6007031 12014062 18021093 24028124 36042186 72084372