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72333329 = 477971931
BaseRepresentation
bin1000100111110…
…11100000010001
312001002220200012
410103323200101
5122004131304
611102204305
71535552225
oct423734021
9161086605
1072333329
1137915112
1220283695
1311ca78b3
14986c785
15653c16e
hex44fb811

72333329 has 8 divisors (see below), whose sum is σ = 74003328. Its totient is φ = 70668880.

The previous prime is 72333319. The next prime is 72333341. The reversal of 72333329 is 92333327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72333329 - 28 = 72333073 is a prime.

It is a super-2 number, since 2×723333292 = 10464220968444482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72333295 and 72333304.

It is not an unprimeable number, because it can be changed into a prime (72333319) 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, 36494 + ... + 38424.

It is an arithmetic number, because the mean of its divisors is an integer number (9250416).

Almost surely, 272333329 is an apocalyptic number.

It is an amenable number.

72333329 is a deficient number, since it is larger than the sum of its proper divisors (1669999).

72333329 is a wasteful number, since it uses less digits than its factorization.

72333329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775.

The product of its digits is 20412, while the sum is 32.

The square root of 72333329 is about 8504.9002933603. The cubic root of 72333329 is about 416.6577692678.

The spelling of 72333329 in words is "seventy-two million, three hundred thirty-three thousand, three hundred twenty-nine".

Divisors: 1 47 797 1931 37459 90757 1539007 72333329