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12790290025405 = 510125327306981
BaseRepresentation
bin1011101000011111100010…
…1100011000101110111101
31200021201222022012000201101
42322013320230120232331
53134024003221303110
643111440024013101
72460032211256504
oct272077054305675
950251868160641
1012790290025405
114091371305a02
121526a16301191
1371a171a96759
143230a651983b
15172a88a4313a
hexba1f8b18bbd

12790290025405 has 8 divisors (see below), whose sum is σ = 15500311872984. Its totient is φ = 10130922792000.

The previous prime is 12790290025399. The next prime is 12790290025439. The reversal of 12790290025405 is 50452009209721.

It can be written as a sum of positive squares in 4 ways, for example, as 704641046041 + 12085648979364 = 839429^2 + 3476442^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12790290025405 - 227 = 12790155807677 is a prime.

It is a super-3 number, since 3×127902900254053 (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12663652986 + ... + 12663653995.

It is an arithmetic number, because the mean of its divisors is an integer number (1937538984123).

Almost surely, 212790290025405 is an apocalyptic number.

It is an amenable number.

12790290025405 is a deficient number, since it is larger than the sum of its proper divisors (2710021847579).

12790290025405 is a wasteful number, since it uses less digits than its factorization.

12790290025405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25327307087.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 12790290025405 in words is "twelve trillion, seven hundred ninety billion, two hundred ninety million, twenty-five thousand, four hundred five".

Divisors: 1 5 101 505 25327306981 126636534905 2558058005081 12790290025405