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72842116 = 22139131011
BaseRepresentation
bin1000101011101…
…11101110000100
312002001202121011
410111313232010
5122121421431
611121132004
71543101454
oct425675604
9162052534
1072842116
11381323a6
122048a004
1312125359
149961d64
1565dccb1
hex4577b84

72842116 has 12 divisors (see below), whose sum is σ = 128391760. Its totient is φ = 36158760.

The previous prime is 72842111. The next prime is 72842123. The reversal of 72842116 is 61124827.

It is not an unprimeable number, because it can be changed into a prime (72842111) 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, 64950 + ... + 66061.

Almost surely, 272842116 is an apocalyptic number.

It is an amenable number.

72842116 is a deficient number, since it is larger than the sum of its proper divisors (55549644).

72842116 is a wasteful number, since it uses less digits than its factorization.

72842116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131154 (or 131152 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 72842116 is about 8534.7592819013. The cubic root of 72842116 is about 417.6324004284.

The spelling of 72842116 in words is "seventy-two million, eight hundred forty-two thousand, one hundred sixteen".

Divisors: 1 2 4 139 278 556 131011 262022 524044 18210529 36421058 72842116