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42745301917 = 316432144449
BaseRepresentation
bin100111110011110100…
…011000101110011101
311002022222211022202021
4213303310120232131
51200020244130132
631345324100141
73042161033323
oct476364305635
9132288738667
1042745301917
1117145676aaa
12834b394651
134052a6ab76
1420d7033d13
1511a2a19997
hex9f3d18b9d

42745301917 has 8 divisors (see below), whose sum is σ = 44192825600. Its totient is φ = 41302068480.

The previous prime is 42745301887. The next prime is 42745301933. The reversal of 42745301917 is 71910354724.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42745301917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42745301957) 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, 1052292 + ... + 1092157.

It is an arithmetic number, because the mean of its divisors is an integer number (5524103200).

Almost surely, 242745301917 is an apocalyptic number.

It is an amenable number.

42745301917 is a deficient number, since it is larger than the sum of its proper divisors (1447523683).

42745301917 is a wasteful number, since it uses less digits than its factorization.

42745301917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145123.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 42745301917 in words is "forty-two billion, seven hundred forty-five million, three hundred one thousand, nine hundred seventeen".

Divisors: 1 31 643 19933 2144449 66477919 1378880707 42745301917