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72872207 = 791019133
BaseRepresentation
bin1000101011111…
…11000100001111
312002010021212122
410111333010033
5122123402312
611121523155
71543255262
oct425770417
9162107778
1072872207
1138152a71
12204a34bb
1312135c65
14996ccd9
1565e6b72
hex457f10f

72872207 has 8 divisors (see below), whose sum is σ = 74533440. Its totient is φ = 71229600.

The previous prime is 72872197. The next prime is 72872209. The reversal of 72872207 is 70227827.

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 72872207 - 28 = 72871951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72872209) 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, 3413 + ... + 12545.

It is an arithmetic number, because the mean of its divisors is an integer number (9316680).

Almost surely, 272872207 is an apocalyptic number.

72872207 is a deficient number, since it is larger than the sum of its proper divisors (1661233).

72872207 is a wasteful number, since it uses less digits than its factorization.

72872207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9313.

The product of its (nonzero) digits is 21952, while the sum is 35.

The square root of 72872207 is about 8536.5219498341. The cubic root of 72872207 is about 417.6899003436.

The spelling of 72872207 in words is "seventy-two million, eight hundred seventy-two thousand, two hundred seven".

Divisors: 1 79 101 7979 9133 721507 922433 72872207