Search a number
-
+
12472904 = 231559113
BaseRepresentation
bin101111100101…
…001001001000
3212110200121102
4233211021020
511143113104
61123200532
7211006103
oct57451110
925420542
1012472904
11704a094
124216148
132779322
14192973a
151165a1e
hexbe5248

12472904 has 8 divisors (see below), whose sum is σ = 23386710. Its totient is φ = 6236448.

The previous prime is 12472879. The next prime is 12472909. The reversal of 12472904 is 40927421.

It can be written as a sum of positive squares in only one way, i.e., 10252804 + 2220100 = 3202^2 + 1490^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (12472909) by changing a digit.

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 as a sum of consecutive naturals, namely, 779549 + ... + 779564.

Almost surely, 212472904 is an apocalyptic number.

It is an amenable number.

12472904 is a deficient number, since it is larger than the sum of its proper divisors (10913806).

12472904 is a wasteful number, since it uses less digits than its factorization.

12472904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559119 (or 1559115 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12472904 is about 3531.6998739984. The cubic root of 12472904 is about 231.9116290461.

The spelling of 12472904 in words is "twelve million, four hundred seventy-two thousand, nine hundred four".

Divisors: 1 2 4 8 1559113 3118226 6236452 12472904