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126430040013 = 31073557110729
BaseRepresentation
bin111010110111111010…
…0010100111111001101
3110002100010102111011120
41311233310110333031
54032412042240023
6134025310311153
712064024415514
oct1655764247715
9402303374146
10126430040013
1149689509382
12206051b84b9
13bbcb3b1984
1461952d967b
15344e7378e3
hex1d6fd14fcd

126430040013 has 16 divisors (see below), whose sum is σ = 170198210880. Its totient is φ = 83474738816.

The previous prime is 126430039993. The next prime is 126430040047. The reversal of 126430040013 is 310040034621.

It is a cyclic number.

It is not a de Polignac number, because 126430040013 - 212 = 126430035917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126430040713) 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, 1086433 + ... + 1197161.

It is an arithmetic number, because the mean of its divisors is an integer number (10637388180).

Almost surely, 2126430040013 is an apocalyptic number.

It is an amenable number.

126430040013 is a deficient number, since it is larger than the sum of its proper divisors (43768170867).

126430040013 is a wasteful number, since it uses less digits than its factorization.

126430040013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114396.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 126430040013 its reverse (310040034621), we get a palindrome (436470074634).

The spelling of 126430040013 in words is "one hundred twenty-six billion, four hundred thirty million, forty thousand, thirteen".

Divisors: 1 3 107 321 3557 10671 110729 332187 380599 1141797 11848003 35544009 393863053 1181589159 42143346671 126430040013