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30107808255 = 357476100873
BaseRepresentation
bin11100000010100100…
…001011000111111111
32212201021011010111110
4130002210023013333
5443130044331010
621455322453103
72114046101430
oct340244130777
985637133443
1030107808255
1111850088a68
125a03064193
132aba810975
1416588ad487
15bb3322120
hex70290b1ff

30107808255 has 32 divisors (see below), whose sum is σ = 56225654784. Its totient is φ = 13470725376.

The previous prime is 30107808193. The next prime is 30107808257. The reversal of 30107808255 is 55280870103.

It is not a de Polignac number, because 30107808255 - 214 = 30107791871 is a prime.

It is a super-2 number, since 2×301078082552 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30107808257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3045502 + ... + 3055371.

It is an arithmetic number, because the mean of its divisors is an integer number (1757051712).

Almost surely, 230107808255 is an apocalyptic number.

30107808255 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30107808255 is a deficient number, since it is larger than the sum of its proper divisors (26117846529).

30107808255 is a wasteful number, since it uses less digits than its factorization.

30107808255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100935.

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 30107808255 in words is "thirty billion, one hundred seven million, eight hundred eight thousand, two hundred fifty-five".

Divisors: 1 3 5 7 15 21 35 47 105 141 235 329 705 987 1645 4935 6100873 18302619 30504365 42706111 91513095 128118333 213530555 286741031 640591665 860223093 1433705155 2007187217 4301115465 6021561651 10035936085 30107808255