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11872868 = 2271724943
BaseRepresentation
bin101101010010…
…101001100100
3211100012111212
4231102221210
511014412433
61102250552
7202626530
oct55225144
924305455
1011872868
11677a297
123b86a58
1325c9187
141810bc0
151097d48
hexb52a64

11872868 has 24 divisors (see below), whose sum is σ = 25143552. Its totient is φ = 4788864.

The previous prime is 11872841. The next prime is 11872877. The reversal of 11872868 is 86827811.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11996 + ... + 12947.

It is an arithmetic number, because the mean of its divisors is an integer number (1047648).

Almost surely, 211872868 is an apocalyptic number.

It is an amenable number.

11872868 is an abundant number, since it is smaller than the sum of its proper divisors (13270684).

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

11872868 is a wasteful number, since it uses less digits than its factorization.

11872868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24971 (or 24969 counting only the distinct ones).

The product of its digits is 43008, while the sum is 41.

The square root of 11872868 is about 3445.7028310636. The cubic root of 11872868 is about 228.1314774667.

The spelling of 11872868 in words is "eleven million, eight hundred seventy-two thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 24943 49886 99772 174601 349202 424031 698404 848062 1696124 2968217 5936434 11872868