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5121830161 = 77313972109
BaseRepresentation
bin1001100010100100…
…01110110100010001
3111012221121221010101
410301102032310101
540442142031121
62204122332401
7240631560310
oct46122166421
914187557111
105121830161
112199159898
12bab35a101
13638176846
14368336277
151ee9be491
hex13148ed11

5121830161 has 16 divisors (see below), whose sum is σ = 5976476800. Its totient is φ = 4298790528.

The previous prime is 5121830143. The next prime is 5121830177. The reversal of 5121830161 is 1610381215.

It is a cyclic number.

It is not a de Polignac number, because 5121830161 - 219 = 5121305873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5121830101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34975 + ... + 107083.

It is an arithmetic number, because the mean of its divisors is an integer number (373529800).

Almost surely, 25121830161 is an apocalyptic number.

It is an amenable number.

5121830161 is a deficient number, since it is larger than the sum of its proper divisors (854646639).

5121830161 is a wasteful number, since it uses less digits than its factorization.

5121830161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72328.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 5121830161 is about 71566.9627761302. The cubic root of 5121830161 is about 1723.7530901834.

The spelling of 5121830161 in words is "five billion, one hundred twenty-one million, eight hundred thirty thousand, one hundred sixty-one".

Divisors: 1 7 73 139 511 973 10147 71029 72109 504763 5263957 10023151 36847699 70162057 731690023 5121830161