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310012013223 = 32113131434477
BaseRepresentation
bin1001000001011100010…
…01111110101010100111
31002122012021021222220200
410200232021332222213
520034401033410343
6354230105201543
731253246430303
oct4405611765247
91078167258820
10310012013223
1110a525776aa0
12500ba4902b3
13233071640a3
141100cb10d03
1580e66414d3
hex482e27eaa7

310012013223 has 12 divisors (see below), whose sum is σ = 488503778568. Its totient is φ = 187886068560.

The previous prime is 310012013219. The next prime is 310012013261. The reversal of 310012013223 is 322310210013.

310012013223 is a `hidden beast` number, since 310 + 0 + 120 + 13 + 223 = 666.

It is not a de Polignac number, because 310012013223 - 22 = 310012013219 is a prime.

It is a super-2 number, since 2×3100120132232 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 310012013196 and 310012013205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310012013263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1565717140 + ... + 1565717337.

It is an arithmetic number, because the mean of its divisors is an integer number (40708648214).

Almost surely, 2310012013223 is an apocalyptic number.

310012013223 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

310012013223 is a deficient number, since it is larger than the sum of its proper divisors (178491765345).

310012013223 is a wasteful number, since it uses less digits than its factorization.

310012013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131434494 (or 3131434491 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 310012013223 its reverse (322310210013), we get a palindrome (632322223236).

The spelling of 310012013223 in words is "three hundred ten billion, twelve million, thirteen thousand, two hundred twenty-three".

Divisors: 1 3 9 11 33 99 3131434477 9394303431 28182910293 34445779247 103337337741 310012013223