Search a number
-
+
12701446979 = 132531418047
BaseRepresentation
bin10111101010001000…
…01011001101000011
31012210012000100201012
423311010023031003
5202003032300404
65500204031135
7626516342444
oct136504131503
935705010635
1012701446979
1154286aa121
1225658324ab
13127558c700
14886c512cb
154e512ba6e
hex2f510b343

12701446979 has 12 divisors (see below), whose sum is σ = 14013150336. Its totient is φ = 11503189152.

The previous prime is 12701446939. The next prime is 12701447029. The reversal of 12701446979 is 97964410721.

It is not a de Polignac number, because 12701446979 - 216 = 12701381443 is a prime.

It is a super-2 number, since 2×127014469792 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12701446939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 700067 + ... + 717980.

It is an arithmetic number, because the mean of its divisors is an integer number (1167762528).

Almost surely, 212701446979 is an apocalyptic number.

12701446979 is a deficient number, since it is larger than the sum of its proper divisors (1311703357).

12701446979 is a wasteful number, since it uses less digits than its factorization.

12701446979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418126 (or 1418113 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 12701446979 in words is "twelve billion, seven hundred one million, four hundred forty-six thousand, nine hundred seventy-nine".

Divisors: 1 13 53 169 689 8957 1418047 18434611 75156491 239649943 977034383 12701446979