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12380007976 = 2372311018763
BaseRepresentation
bin10111000011110011…
…11110111000101000
31011221210011120021221
423201321332320220
5200323240223401
65404242311424
7615534221500
oct134171767050
934853146257
1012380007976
115283212256
122496058574
131223ac650b
1485629aa00
154c6cd57a1
hex2e1e7ee28

12380007976 has 48 divisors (see below), whose sum is σ = 27873383040. Its totient is φ = 5134560480.

The previous prime is 12380007953. The next prime is 12380007977. The reversal of 12380007976 is 67970008321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12380007977) 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 11 ways as a sum of consecutive naturals, for example, 497230 + ... + 521533.

It is an arithmetic number, because the mean of its divisors is an integer number (580695480).

Almost surely, 212380007976 is an apocalyptic number.

It is an amenable number.

12380007976 is an abundant number, since it is smaller than the sum of its proper divisors (15493375064).

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

12380007976 is a wasteful number, since it uses less digits than its factorization.

12380007976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018814 (or 1018803 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 12380007976 in words is "twelve billion, three hundred eighty million, seven thousand, nine hundred seventy-six".

Divisors: 1 2 4 7 8 14 28 31 49 56 62 98 124 196 217 248 392 434 868 1519 1736 3038 6076 12152 1018763 2037526 4075052 7131341 8150104 14262682 28525364 31581653 49919387 57050728 63163306 99838774 126326612 199677548 221071571 252653224 399355096 442143142 884286284 1547500997 1768572568 3095001994 6190003988 12380007976