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125405044232 = 23131205817733
BaseRepresentation
bin111010011001010111…
…0010001111000001000
3102222200200201022021212
41310302232101320020
54023312142403412
6133335453152252
712026440200566
oct1646256217010
9388620638255
10125405044232
1149202972926
1220379a8b688
13ba96c324b0
1460d9122a36
1533de76a222
hex1d32b91e08

125405044232 has 16 divisors (see below), whose sum is σ = 253221724140. Its totient is φ = 57879251136.

The previous prime is 125405044231. The next prime is 125405044273. The reversal of 125405044232 is 232440504521.

It can be written as a sum of positive squares in 2 ways, for example, as 124528528996 + 876515236 = 352886^2 + 29606^2 .

It is not an unprimeable number, because it can be changed into a prime (125405044231) 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 3 ways as a sum of consecutive naturals, for example, 602908763 + ... + 602908970.

Almost surely, 2125405044232 is an apocalyptic number.

It is an amenable number.

125405044232 is an abundant number, since it is smaller than the sum of its proper divisors (127816679908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125405044232 is a wasteful number, since it uses less digits than its factorization.

125405044232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205817752 (or 1205817748 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 125405044232 its reverse (232440504521), we get a palindrome (357845548753).

The spelling of 125405044232 in words is "one hundred twenty-five billion, four hundred five million, forty-four thousand, two hundred thirty-two".

Divisors: 1 2 4 8 13 26 52 104 1205817733 2411635466 4823270932 9646541864 15675630529 31351261058 62702522116 125405044232