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7120972 = 2219432179
BaseRepresentation
bin11011001010100001001100
3111101210010201
4123022201030
53310332342
6412343244
7114345565
oct33124114
914353121
107120972
114024101
122474b24
1316242c1
14d3516c
15959db7
hex6ca84c

7120972 has 24 divisors (see below), whose sum is σ = 13428800. Its totient is φ = 3293136.

The previous prime is 7120969. The next prime is 7120987. The reversal of 7120972 is 2790217.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7120972.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2179 + ... + 4357.

Almost surely, 27120972 is an apocalyptic number.

7120972 is the 2179-th pentagonal number.

It is an amenable number.

7120972 is a deficient number, since it is larger than the sum of its proper divisors (6307828).

7120972 is a wasteful number, since it uses less digits than its factorization.

7120972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245 (or 2243 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 7120972 is about 2668.5149428100. The cubic root of 7120972 is about 192.3887882955.

The spelling of 7120972 in words is "seven million, one hundred twenty thousand, nine hundred seventy-two".

Divisors: 1 2 4 19 38 43 76 86 172 817 1634 2179 3268 4358 8716 41401 82802 93697 165604 187394 374788 1780243 3560486 7120972