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72276995 = 572119787
BaseRepresentation
bin1000100111011…
…01110000000011
312001000001101202
410103231300003
5122000330440
611101051415
71535226050
oct423556003
9161001352
1072276995
113788685a
1220256b6b
1311c8806b
149856027
15652a615
hex44edc03

72276995 has 16 divisors (see below), whose sum is σ = 99602688. Its totient is φ = 49321440.

The previous prime is 72276983. The next prime is 72277067. The reversal of 72276995 is 59967227.

It is a happy number.

It is not a de Polignac number, because 72276995 - 214 = 72260611 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2492 + ... + 12278.

It is an arithmetic number, because the mean of its divisors is an integer number (6225168).

Almost surely, 272276995 is an apocalyptic number.

72276995 is a deficient number, since it is larger than the sum of its proper divisors (27325693).

72276995 is a wasteful number, since it uses less digits than its factorization.

72276995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010.

The product of its digits is 476280, while the sum is 47.

The square root of 72276995 is about 8501.5877928773. The cubic root of 72276995 is about 416.5495752759.

The spelling of 72276995 in words is "seventy-two million, two hundred seventy-six thousand, nine hundred ninety-five".

Divisors: 1 5 7 35 211 1055 1477 7385 9787 48935 68509 342545 2065057 10325285 14455399 72276995