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72874276 = 22107170267
BaseRepresentation
bin1000101011111…
…11100100100100
312002010101201021
410111333210210
5122123434101
611121540524
71543264306
oct425774444
9162111637
1072874276
1138154582
12204a4744
1312136b97
14996d976
1565e75a1
hex457f924

72874276 has 12 divisors (see below), whose sum is σ = 128722608. Its totient is φ = 36096392.

The previous prime is 72874267. The next prime is 72874279. The reversal of 72874276 is 67247827.

It is not an unprimeable number, because it can be changed into a prime (72874279) 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, 84706 + ... + 85561.

It is an arithmetic number, because the mean of its divisors is an integer number (10726884).

Almost surely, 272874276 is an apocalyptic number.

It is an amenable number.

72874276 is a deficient number, since it is larger than the sum of its proper divisors (55848332).

72874276 is a wasteful number, since it uses less digits than its factorization.

72874276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170378 (or 170376 counting only the distinct ones).

The product of its digits is 263424, while the sum is 43.

The square root of 72874276 is about 8536.6431341599. The cubic root of 72874276 is about 417.6938533469.

The spelling of 72874276 in words is "seventy-two million, eight hundred seventy-four thousand, two hundred seventy-six".

Divisors: 1 2 4 107 214 428 170267 340534 681068 18218569 36437138 72874276