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11318972 = 227404249
BaseRepresentation
bin101011001011…
…011010111100
3210022001201012
4223023122330
510344201342
61042334352
7165131630
oct53133274
923261635
1011318972
116431125
12395a3b8
132464022
141708dc0
15ed8b82
hexacb6bc

11318972 has 12 divisors (see below), whose sum is σ = 22638000. Its totient is φ = 4850976.

The previous prime is 11318971. The next prime is 11318981. The reversal of 11318972 is 27981311.

11318972 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11318971) 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, 202097 + ... + 202152.

It is an arithmetic number, because the mean of its divisors is an integer number (1886500).

Almost surely, 211318972 is an apocalyptic number.

It is an amenable number.

11318972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11318972 is a wasteful number, since it uses less digits than its factorization.

11318972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404260 (or 404258 counting only the distinct ones).

The product of its digits is 3024, while the sum is 32.

The square root of 11318972 is about 3364.3679941410. The cubic root of 11318972 is about 224.5272179605.

The spelling of 11318972 in words is "eleven million, three hundred eighteen thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 14 28 404249 808498 1616996 2829743 5659486 11318972