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152061020721 = 3223734594303
BaseRepresentation
bin1000110110011110001…
…0110000101000110001
3112112111101122012210100
42031213202300220301
54442410110130341
6153504511223013
713662133231011
oct2154742605061
9475441565710
10152061020721
1159541533565
1225578b17a69
131145457024c
1475073b1c41
153e4e9e73b6
hex23678b0a31

152061020721 has 12 divisors (see below), whose sum is σ = 229193422848. Its totient is φ = 96966447864.

The previous prime is 152061020693. The next prime is 152061020731. The reversal of 152061020721 is 127020160251.

152061020721 is a `hidden beast` number, since 1 + 5 + 2 + 0 + 610 + 20 + 7 + 21 = 666.

It is not a de Polignac number, because 152061020721 - 211 = 152061018673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152061020731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367296945 + ... + 367297358.

It is an arithmetic number, because the mean of its divisors is an integer number (19099451904).

Almost surely, 2152061020721 is an apocalyptic number.

It is an amenable number.

152061020721 is a deficient number, since it is larger than the sum of its proper divisors (77132402127).

152061020721 is a wasteful number, since it uses less digits than its factorization.

152061020721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734594332 (or 734594329 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

Adding to 152061020721 its reverse (127020160251), we get a palindrome (279081180972).

The spelling of 152061020721 in words is "one hundred fifty-two billion, sixty-one million, twenty thousand, seven hundred twenty-one".

Divisors: 1 3 9 23 69 207 734594303 2203782909 6611348727 16895668969 50687006907 152061020721