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4999972 = 221773529
BaseRepresentation
bin10011000100101100100100
3100102000200011
4103010230210
52234444342
6255100004
760333115
oct23045444
910360604
104999972
11290560a
121811604
131060a83
1494220c
1568b717
hex4c4b24

4999972 has 12 divisors (see below), whose sum is σ = 9264780. Its totient is φ = 2352896.

The previous prime is 4999963. The next prime is 4999999. The reversal of 4999972 is 2799994.

It can be written as a sum of positive squares in 2 ways, for example, as 3709476 + 1290496 = 1926^2 + 1136^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36697 + ... + 36832.

It is an arithmetic number, because the mean of its divisors is an integer number (772065).

Almost surely, 24999972 is an apocalyptic number.

It is an amenable number.

4999972 is a deficient number, since it is larger than the sum of its proper divisors (4264808).

4999972 is a wasteful number, since it uses less digits than its factorization.

4999972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73550 (or 73548 counting only the distinct ones).

The product of its digits is 367416, while the sum is 49.

The square root of 4999972 is about 2236.0617165007. The cubic root of 4999972 is about 170.9972754716.

The spelling of 4999972 in words is "four million, nine hundred ninety-nine thousand, nine hundred seventy-two".

Divisors: 1 2 4 17 34 68 73529 147058 294116 1249993 2499986 4999972