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12950719983 = 323741299419
BaseRepresentation
bin11000000111110110…
…00100110111101111
31020102120001201222200
430003323010313233
5203010341014413
65541030512543
7635634206055
oct140373046757
936376051880
1012950719983
115546386673
122615205753
1312b5109226
148abdbc1d5
1550be6a573
hex303ec4def

12950719983 has 24 divisors (see below), whose sum is σ = 19218872400. Its totient is φ = 8397540864.

The previous prime is 12950719981. The next prime is 12950720021. The reversal of 12950719983 is 38991705921.

12950719983 is a `hidden beast` number, since 129 + 507 + 1 + 9 + 9 + 8 + 3 = 666.

It is not a de Polignac number, because 12950719983 - 21 = 12950719981 is a prime.

It is a super-2 number, since 2×129507199832 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12950719981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1370248 + ... + 1379666.

It is an arithmetic number, because the mean of its divisors is an integer number (800786350).

Almost surely, 212950719983 is an apocalyptic number.

12950719983 is a deficient number, since it is larger than the sum of its proper divisors (6268152417).

12950719983 is a wasteful number, since it uses less digits than its factorization.

12950719983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13591 (or 13588 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 54.

The spelling of 12950719983 in words is "twelve billion, nine hundred fifty million, seven hundred nineteen thousand, nine hundred eighty-three".

Divisors: 1 3 9 37 111 333 4129 9419 12387 28257 37161 84771 152773 348503 458319 1045509 1374957 3136527 38891051 116673153 350019459 1438968887 4316906661 12950719983