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42975296709 = 31071033112959
BaseRepresentation
bin101000000001100001…
…101111110011000101
311002221000121021021220
4220001201233303011
51201003133443314
631424221430553
73050652665142
oct500141576305
9132830537256
1042975296709
1117253486544
1283b440b459
13408b5c7967
1421197c33c9
1511b7ceb3a9
hexa0186fcc5

42975296709 has 16 divisors (see below), whose sum is σ = 57845975040. Its totient is φ = 28377501680.

The previous prime is 42975296677. The next prime is 42975296711. The reversal of 42975296709 is 90769257924.

It is a cyclic number.

It is not a de Polignac number, because 42975296709 - 25 = 42975296677 is a prime.

It is a super-2 number, since 2×429752967092 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42975296789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3309772 + ... + 3322730.

It is an arithmetic number, because the mean of its divisors is an integer number (3615373440).

Almost surely, 242975296709 is an apocalyptic number.

It is an amenable number.

42975296709 is a deficient number, since it is larger than the sum of its proper divisors (14870678331).

42975296709 is a wasteful number, since it uses less digits than its factorization.

42975296709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23400.

The product of its (nonzero) digits is 17146080, while the sum is 60.

The spelling of 42975296709 in words is "forty-two billion, nine hundred seventy-five million, two hundred ninety-six thousand, seven hundred nine".

Divisors: 1 3 107 321 10331 12959 30993 38877 1105417 1386613 3316251 4159839 133879429 401638287 14325098903 42975296709