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93139581283225 = 5219301772
BaseRepresentation
bin10101001011010110111111…
…101010000010101110011001
3110012210001112120011102012221
4111023112333222002232121
544201444330302030400
6530031422152304041
725422053436203521
oct2513267752025631
9405701476142187
1093139581283225
112774a302543954
12a5430a93a2021
133cc80427169c9
1418ddda0770681
15ab7b93182c1a
hex54b5bfa82b99

93139581283225 has 9 divisors (see below), whose sum is σ = 115493140626717. Its totient is φ = 74511626423040.

The previous prime is 93139581283207. The next prime is 93139581283313. The reversal of 93139581283225 is 52238218593139.

The square root of 93139581283225 is 9650885.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2751892807689 + 90387688475536 = 1658883^2 + 9507244^2 .

It is not a de Polignac number, because 93139581283225 - 211 = 93139581281177 is a prime.

It is a super-4 number, since 4×931395812832254 (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 47289337 + ... + 49219513.

Almost surely, 293139581283225 is an apocalyptic number.

93139581283225 is the 9650885-th square number.

93139581283225 is the 4825443-rd centered octagonal number.

It is an amenable number.

93139581283225 is a deficient number, since it is larger than the sum of its proper divisors (22353559343492).

93139581283225 is an frugal number, since it uses more digits than its factorization.

93139581283225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3860364 (or 1930182 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 61.

The spelling of 93139581283225 in words is "ninety-three trillion, one hundred thirty-nine billion, five hundred eighty-one million, two hundred eighty-three thousand, two hundred twenty-five".

Divisors: 1 5 25 1930177 9650885 48254425 3725583251329 18627916256645 93139581283225