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12607229377 = 521121319949
BaseRepresentation
bin10111011110111001…
…10000110111000001
31012112121201121110101
423233130300313001
5201304422320002
65443000402401
7624263452531
oct135734606701
935477647411
1012607229377
11538a4a8036
12253a176401
13125bbc1b52
148785274c1
154dbc1a587
hex2ef730dc1

12607229377 has 8 divisors (see below), whose sum is σ = 12642474600. Its totient is φ = 12572027520.

The previous prime is 12607229347. The next prime is 12607229399. The reversal of 12607229377 is 77392270621.

It can be written as a sum of positive squares in 4 ways, for example, as 684554896 + 11922674481 = 26164^2 + 109191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12607229377 - 211 = 12607227329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12607229347) 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 7 ways as a sum of consecutive naturals, for example, 621999 + ... + 641947.

It is an arithmetic number, because the mean of its divisors is an integer number (1580309325).

Almost surely, 212607229377 is an apocalyptic number.

It is an amenable number.

12607229377 is a deficient number, since it is larger than the sum of its proper divisors (35245223).

12607229377 is a wasteful number, since it uses less digits than its factorization.

12607229377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21683.

The product of its (nonzero) digits is 444528, while the sum is 46.

Adding to 12607229377 its reverse (77392270621), we get a palindrome (89999499998).

The spelling of 12607229377 in words is "twelve billion, six hundred seven million, two hundred twenty-nine thousand, three hundred seventy-seven".

Divisors: 1 521 1213 19949 631973 10393429 24198137 12607229377