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72874007 = 586712421
BaseRepresentation
bin1000101011111…
…11100000010111
312002010101100022
410111333200113
5122123432012
611121535355
71543263443
oct425774027
9162111308
1072874007
1138154358
12204a455b
1312136a1b
14996d823
1565e7472
hex457f817

72874007 has 4 divisors (see below), whose sum is σ = 72892296. Its totient is φ = 72855720.

The previous prime is 72874003. The next prime is 72874033. The reversal of 72874007 is 70047827.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72874007 - 22 = 72874003 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 (72874003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344 + ... + 12077.

It is an arithmetic number, because the mean of its divisors is an integer number (18223074).

Almost surely, 272874007 is an apocalyptic number.

72874007 is a deficient number, since it is larger than the sum of its proper divisors (18289).

72874007 is a wasteful number, since it uses less digits than its factorization.

72874007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18288.

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

The square root of 72874007 is about 8536.6273785377. The cubic root of 72874007 is about 417.6933394034.

The spelling of 72874007 in words is "seventy-two million, eight hundred seventy-four thousand, seven".

Divisors: 1 5867 12421 72874007