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31350307310 = 257263980219
BaseRepresentation
bin11101001100100111…
…111011100111101110
32222220212010121202222
4131030213323213232
51003201134313220
622222505515342
72156614133600
oct351447734756
988825117688
1031350307310
1112328481993
1260ab1a2b52
132c580652ca
141735903170
15c37454e25
hex74c9fb9ee

31350307310 has 24 divisors (see below), whose sum is σ = 65643705720. Its totient is φ = 10748676624.

The previous prime is 31350307273. The next prime is 31350307321. The reversal of 31350307310 is 1370305313.

It is a super-2 number, since 2×313503073102 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31350307310.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31989620 + ... + 31990599.

It is an arithmetic number, because the mean of its divisors is an integer number (2735154405).

Almost surely, 231350307310 is an apocalyptic number.

31350307310 is an abundant number, since it is smaller than the sum of its proper divisors (34293398410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31350307310 is a wasteful number, since it uses less digits than its factorization.

31350307310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63980240 (or 63980233 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 26.

The spelling of 31350307310 in words is "thirty-one billion, three hundred fifty million, three hundred seven thousand, three hundred ten".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 63980219 127960438 319901095 447861533 639802190 895723066 2239307665 3135030731 4478615330 6270061462 15675153655 31350307310