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860484430129 = 29411032
BaseRepresentation
bin11001000010110001101…
…11100110100100110001
310001021001122021010221111
430201120313212210301
5103044233003231004
61455145011353321
7116111414655322
oct14413067464461
93037048233844
10860484430129
11301a25034335
1211a9265b2841
13631b2b99abc
142d90d2ba449
15175b3334a04
hexc858de6931

860484430129 has 15 divisors (see below), whose sum is σ = 892024698733. Its totient is φ = 830059323352.

The previous prime is 860484430097. The next prime is 860484430133. The reversal of 860484430129 is 921034484068.

The square root of 860484430129 is 927623.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 2045119729 + 858439310400 = 45223^2 + 926520^2 .

It is not a de Polignac number, because 860484430129 - 25 = 860484430097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (860484430139) 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 14 ways as a sum of consecutive naturals, for example, 780130392 + ... + 780131494.

Almost surely, 2860484430129 is an apocalyptic number.

860484430129 is the 927623-rd square number.

860484430129 is the 463812-nd centered octagonal number.

It is an amenable number.

860484430129 is a deficient number, since it is larger than the sum of its proper divisors (31540268604).

860484430129 is an frugal number, since it uses more digits than its factorization.

860484430129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 49.

Multiplying 860484430129 by its sum of digits (49), we get a square (42163737076321 = 64933612).

The spelling of 860484430129 in words is "eight hundred sixty billion, four hundred eighty-four million, four hundred thirty thousand, one hundred twenty-nine".

Divisors: 1 29 841 1103 24389 31987 707281 927623 1216609 26901067 35281661 780130943 1023168169 29671876901 860484430129