Search a number
-
+
12507070279 = 11611011791031
BaseRepresentation
bin10111010010111101…
…01011111101000111
31012021122021000000011
423221132223331013
5201103302222104
65425021531051
7621636225514
oct135136537507
935248230004
1012507070279
115338a08020
122510713a87
131244223b02
148690d430b
154d3033904
hex2e97abf47

12507070279 has 32 divisors (see below), whose sum is σ = 14096954880. Its totient is φ = 11000400000.

The previous prime is 12507070259. The next prime is 12507070309. The reversal of 12507070279 is 97207070521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12507070279 - 231 = 10359586631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12507070259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12130494 + ... + 12131524.

It is an arithmetic number, because the mean of its divisors is an integer number (440529840).

Almost surely, 212507070279 is an apocalyptic number.

12507070279 is a deficient number, since it is larger than the sum of its proper divisors (1589884601).

12507070279 is a wasteful number, since it uses less digits than its factorization.

12507070279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383.

The product of its (nonzero) digits is 61740, while the sum is 40.

The spelling of 12507070279 in words is "twelve billion, five hundred seven million, seventy thousand, two hundred seventy-nine".

Divisors: 1 11 61 101 179 671 1031 1111 1969 6161 10919 11341 18079 62891 67771 104131 120109 184549 198869 691801 1102819 1145441 2030039 6351991 11257489 12131009 18639449 69871901 123832379 205033939 1137006389 12507070279