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72883387 = 3112291913
BaseRepresentation
bin1000101100000…
…01110010111011
312002010212012201
410112001302323
5122124232022
611122051031
71543333003
oct426016273
9162125181
1072883387
1138160405
12204a9a77
131213b085
149973003
1565ea127
hex4581cbb

72883387 has 8 divisors (see below), whose sum is σ = 75335040. Its totient is φ = 70438080.

The previous prime is 72883361. The next prime is 72883397. The reversal of 72883387 is 78338827.

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 72883387 - 211 = 72881339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72883357) 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 7 ways as a sum of consecutive naturals, for example, 37143 + ... + 39055.

It is an arithmetic number, because the mean of its divisors is an integer number (9416880).

Almost surely, 272883387 is an apocalyptic number.

72883387 is a deficient number, since it is larger than the sum of its proper divisors (2451653).

72883387 is a wasteful number, since it uses less digits than its factorization.

72883387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173.

The product of its digits is 451584, while the sum is 46.

The square root of 72883387 is about 8537.1767581561. The cubic root of 72883387 is about 417.7112598097.

The spelling of 72883387 in words is "seventy-two million, eight hundred eighty-three thousand, three hundred eighty-seven".

Divisors: 1 31 1229 1913 38099 59303 2351077 72883387