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1310131220210 = 25131013122021
BaseRepresentation
bin10011000100001001111…
…001111110111011110010
311122020200022000202122022
4103010021321332323302
5132431122043021320
62441511014511442
7163440162425501
oct23041171767362
94566608022568
101310131220210
11465694a1195a
12191ab4365582
13967110398b7
14475a6d08838
152412d5a3325
hex13109e7eef2

1310131220210 has 8 divisors (see below), whose sum is σ = 2358236196396. Its totient is φ = 524052488080.

The previous prime is 1310131220147. The next prime is 1310131220221. The reversal of 1310131220210 is 120221310131.

It can be written as a sum of positive squares in 2 ways, for example, as 1279909831561 + 30221388649 = 1131331^2 + 173843^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65506561001 + ... + 65506561020.

Almost surely, 21310131220210 is an apocalyptic number.

1310131220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1310131220210 is a deficient number, since it is larger than the sum of its proper divisors (1048104976186).

1310131220210 is a wasteful number, since it uses less digits than its factorization.

1310131220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131013122028.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1310131220210 its reverse (120221310131), we get a palindrome (1430352530341).

The spelling of 1310131220210 in words is "one trillion, three hundred ten billion, one hundred thirty-one million, two hundred twenty thousand, two hundred ten".

Divisors: 1 2 5 10 131013122021 262026244042 655065610105 1310131220210