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131520461368 = 233137127112859
BaseRepresentation
bin111101001111100111…
…0101111101000111000
3110120110212221200111211
41322133032233220320
54123323214230433
6140230351532504
712334125322222
oct1723716575070
9416425850454
10131520461368
115086096527a
12215a5b2a134
13c52cbac20a
1465193b7412
15364b5a08cd
hex1e9f3afa38

131520461368 has 64 divisors (see below), whose sum is σ = 263496499200. Its totient is φ = 61430866560.

The previous prime is 131520461353. The next prime is 131520461381. The reversal of 131520461368 is 863164025131.

It is a self number, because there is not a number n which added to its sum of digits gives 131520461368.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1108923 + ... + 1221781.

It is an arithmetic number, because the mean of its divisors is an integer number (4117132800).

Almost surely, 2131520461368 is an apocalyptic number.

It is an amenable number.

131520461368 is an abundant number, since it is smaller than the sum of its proper divisors (131976037832).

131520461368 is a wasteful number, since it uses less digits than its factorization.

131520461368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113060 (or 113056 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

Adding to 131520461368 its reverse (863164025131), we get a palindrome (994684486499).

The spelling of 131520461368 in words is "one hundred thirty-one billion, five hundred twenty million, four hundred sixty-one thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 31 37 62 74 124 127 148 248 254 296 508 1016 1147 2294 3937 4588 4699 7874 9176 9398 15748 18796 31496 37592 112859 145669 225718 291338 451436 582676 902872 1165352 3498629 4175783 6997258 8351566 13994516 14333093 16703132 27989032 28666186 33406264 57332372 114664744 129449273 258898546 444325883 517797092 530324441 888651766 1035594184 1060648882 1777303532 2121297764 3554607064 4242595528 16440057671 32880115342 65760230684 131520461368