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39316478061 = 3719197349943
BaseRepresentation
bin100100100111011100…
…011101100001101101
310202111000220000200010
4210213130131201231
51121010004244221
630021200323433
72561204356320
oct444734354155
9122430800603
1039316478061
1115746143983
127753013579
133927592503
141c8d8c27b7
1510519bbc76
hex92771d86d

39316478061 has 32 divisors (see below), whose sum is σ = 63097251840. Its totient is φ = 21272894784.

The previous prime is 39316478041. The next prime is 39316478083. The reversal of 39316478061 is 16087461393.

It is a happy number.

It is not a de Polignac number, because 39316478061 - 211 = 39316476013 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 39316478061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39316478021) 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 31 ways as a sum of consecutive naturals, for example, 762256 + ... + 812198.

It is an arithmetic number, because the mean of its divisors is an integer number (1971789120).

Almost surely, 239316478061 is an apocalyptic number.

It is an amenable number.

39316478061 is a deficient number, since it is larger than the sum of its proper divisors (23780773779).

39316478061 is a wasteful number, since it uses less digits than its factorization.

39316478061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51945.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 39316478061 in words is "thirty-nine billion, three hundred sixteen million, four hundred seventy-eight thousand, sixty-one".

Divisors: 1 3 7 19 21 57 133 399 1973 5919 13811 37487 41433 49943 112461 149829 262409 349601 787227 948917 1048803 2846751 6642419 19927257 98537539 295612617 689762773 1872213241 2069288319 5616639723 13105492687 39316478061