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3125100069481 = 13292218226697
BaseRepresentation
bin101101011110011110011…
…110101100001001101001
3102001202102121010021000211
4231132132132230021221
5402200201104210411
610351352352101121
7441531615205525
oct55363636541151
912052377107024
103125100069481
11aa5390577555
124257b98347a1
13198907512160
14ab38170cd85
155645731b221
hex2d79e7ac269

3125100069481 has 8 divisors (see below), whose sum is σ = 3365607965384. Its totient is φ = 2884608685440.

The previous prime is 3125100069479. The next prime is 3125100069493. The reversal of 3125100069481 is 1849600015213.

It can be written as a sum of positive squares in 4 ways, for example, as 500648229225 + 2624451840256 = 707565^2 + 1620016^2 .

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 3125100069481 - 21 = 3125100069479 is a prime.

It is a super-2 number, since 2×31251000694812 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3125100069461) 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, 3733476 + ... + 4493221.

It is an arithmetic number, because the mean of its divisors is an integer number (420700995673).

Almost surely, 23125100069481 is an apocalyptic number.

It is an amenable number.

3125100069481 is a deficient number, since it is larger than the sum of its proper divisors (240507895903).

3125100069481 is a wasteful number, since it uses less digits than its factorization.

3125100069481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8255931.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 3125100069481 in words is "three trillion, one hundred twenty-five billion, one hundred million, sixty-nine thousand, four hundred eighty-one".

Divisors: 1 13 29221 379873 8226697 106947061 240392313037 3125100069481