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1310422561 = 7892103407
BaseRepresentation
bin100111000011011…
…0111011000100001
310101022210100210221
41032012313120201
510140432010221
6334010523041
744321256640
oct11606673041
93338710727
101310422561
11612776958
12306a36481
1317b646c86
14c6075357
157a09d541
hex4e1b7621

1310422561 has 8 divisors (see below), whose sum is σ = 1514453760. Its totient is φ = 1110598368.

The previous prime is 1310422559. The next prime is 1310422583. The reversal of 1310422561 is 1652240131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1310422561 - 21 = 1310422559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310422591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051081 + ... + 1052326.

It is an arithmetic number, because the mean of its divisors is an integer number (189306720).

Almost surely, 21310422561 is an apocalyptic number.

It is an amenable number.

1310422561 is a deficient number, since it is larger than the sum of its proper divisors (204031199).

1310422561 is an equidigital number, since it uses as much as digits as its factorization.

1310422561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103503.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1310422561 is about 36199.7591290329. The cubic root of 1310422561 is about 1094.3018174595.

Adding to 1310422561 its reverse (1652240131), we get a palindrome (2962662692).

The spelling of 1310422561 in words is "one billion, three hundred ten million, four hundred twenty-two thousand, five hundred sixty-one".

Divisors: 1 7 89 623 2103407 14723849 187203223 1310422561