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30686343275 = 527793975591
BaseRepresentation
bin11100100101000011…
…000111000001101011
32221012120202202100102
4130211003013001223
51000321200441100
622032550500015
72134302420440
oct344503070153
987176682312
1030686343275
1112017705985
125b4496460b
132b80632393
1416b16699c7
15be8eeecd5
hex7250c706b

30686343275 has 48 divisors (see below), whose sum is σ = 44156221440. Its totient is φ = 20719670400.

The previous prime is 30686343263. The next prime is 30686343293. The reversal of 30686343275 is 57234368603.

It is not a de Polignac number, because 30686343275 - 26 = 30686343211 is a prime.

It is a super-2 number, since 2×306863432752 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5485730 + ... + 5491320.

It is an arithmetic number, because the mean of its divisors is an integer number (919921280).

Almost surely, 230686343275 is an apocalyptic number.

30686343275 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30686343275 is a deficient number, since it is larger than the sum of its proper divisors (13469878165).

30686343275 is a wasteful number, since it uses less digits than its factorization.

30686343275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6084 (or 6079 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 30686343275 in words is "thirty billion, six hundred eighty-six million, three hundred forty-three thousand, two hundred seventy-five".

Divisors: 1 5 7 25 35 79 175 395 397 553 1975 1985 2765 2779 5591 9925 13825 13895 27955 31363 39137 69475 139775 156815 195685 219541 441689 784075 978425 1097705 2208445 2219627 3091823 5488525 11042225 11098135 15459115 15537389 55490675 77295575 77686945 175350533 388434725 876752665 1227453731 4383763325 6137268655 30686343275