Search a number
-
+
12725560830 = 2358310314957
BaseRepresentation
bin10111101101000000…
…01010010111111110
31012211212101110200210
423312200022113332
5202030220421310
65502424533250
7630231324303
oct136640122776
935755343623
1012725560830
11544027a224
122571921226
13127a583468
1488a12b0aa
154e72e1820
hex2f680a5fe

12725560830 has 64 divisors (see below), whose sum is σ = 30945535488. Its totient is φ = 3348670080.

The previous prime is 12725560807. The next prime is 12725560831. The reversal of 12725560830 is 3806552721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12725560831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2564712 + ... + 2569668.

It is an arithmetic number, because the mean of its divisors is an integer number (483523992).

Almost surely, 212725560830 is an apocalyptic number.

12725560830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12725560830 is an abundant number, since it is smaller than the sum of its proper divisors (18219974658).

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

12725560830 is a wasteful number, since it uses less digits than its factorization.

12725560830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6081.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 12725560830 in words is "twelve billion, seven hundred twenty-five million, five hundred sixty thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 83 166 249 415 498 830 1031 1245 2062 2490 3093 4957 5155 6186 9914 10310 14871 15465 24785 29742 30930 49570 74355 85573 148710 171146 256719 411431 427865 513438 822862 855730 1234293 1283595 2057155 2468586 2567190 4114310 5110667 6171465 10221334 12342930 15332001 25553335 30664002 51106670 76660005 153320010 424185361 848370722 1272556083 2120926805 2545112166 4241853610 6362780415 12725560830