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39908142659 = 72111911033533
BaseRepresentation
bin100101001010101101…
…011110111001000011
310211000021012200220202
4211022231132321003
51123212441031114
630200013555415
72611650421100
oct451255367103
9124007180822
1039908142659
1115a1a119290
1278991a5b6b
1339c00300c8
141d082d9aa7
1510888decde
hex94ab5ee43

39908142659 has 48 divisors (see below), whose sum is σ = 53373012480. Its totient is φ = 29425515840.

The previous prime is 39908142643. The next prime is 39908142661. The reversal of 39908142659 is 95624180993.

It is not a de Polignac number, because 39908142659 - 24 = 39908142643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39908144659) 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 47 ways as a sum of consecutive naturals, for example, 11294057 + ... + 11297589.

It is an arithmetic number, because the mean of its divisors is an integer number (1111937760).

Almost surely, 239908142659 is an apocalyptic number.

39908142659 is a deficient number, since it is larger than the sum of its proper divisors (13464869821).

39908142659 is a wasteful number, since it uses less digits than its factorization.

39908142659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4680 (or 4673 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 56.

The spelling of 39908142659 in words is "thirty-nine billion, nine hundred eight million, one hundred forty-two thousand, six hundred fifty-nine".

Divisors: 1 7 11 19 49 77 133 209 539 931 1103 1463 3533 7721 10241 12133 20957 24731 38863 54047 67127 84931 146699 173117 230527 272041 469889 594517 738397 1026893 1613689 1904287 3289223 3896899 5168779 11295823 27278293 36181453 42865889 74041081 190948051 300061223 518287567 814451891 2100428561 3628012969 5701163237 39908142659