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42779976712 = 23113791282681
BaseRepresentation
bin100111110101111000…
…101010010000001000
311002102102001222121221
4213311320222100020
51200103133223322
631353003211424
73043061542114
oct476570522010
9132372058557
1042779976712
11171631aa760
12835ab16b74
134059cbb8b5
1420db89c744
1511a5ab89c7
hex9f5e2a408

42779976712 has 32 divisors (see below), whose sum is σ = 87735448800. Its totient is φ = 19394121600.

The previous prime is 42779976703. The next prime is 42779976713. The reversal of 42779976712 is 21767997724.

It is not an unprimeable number, because it can be changed into a prime (42779976713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607989 + ... + 674692.

It is an arithmetic number, because the mean of its divisors is an integer number (2741732775).

Almost surely, 242779976712 is an apocalyptic number.

It is an amenable number.

42779976712 is an abundant number, since it is smaller than the sum of its proper divisors (44955472088).

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

42779976712 is a wasteful number, since it uses less digits than its factorization.

42779976712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283077 (or 1283073 counting only the distinct ones).

The product of its digits is 18670176, while the sum is 61.

The spelling of 42779976712 in words is "forty-two billion, seven hundred seventy-nine million, nine hundred seventy-six thousand, seven hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 379 758 1516 3032 4169 8338 16676 33352 1282681 2565362 5130724 10261448 14109491 28218982 56437964 112875928 486136099 972272198 1944544396 3889088792 5347497089 10694994178 21389988356 42779976712