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30310626320 = 2451329144833
BaseRepresentation
bin11100001110101001…
…110111010000010000
32220020101210100120122
4130032221313100100
5444034010020240
621531405525412
72122061033642
oct341651672020
986211710518
1030310626320
11119446161a7
125a5ab73868
132b20843860
1416777c6892
15bc60364b5
hex70ea77410

30310626320 has 40 divisors (see below), whose sum is σ = 75893147736. Its totient is φ = 11191615488.

The previous prime is 30310626287. The next prime is 30310626347. The reversal of 30310626320 is 2362601303.

It can be written as a sum of positive squares in 4 ways, for example, as 2917728256 + 27392898064 = 54016^2 + 165508^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 30310626320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14571377 + ... + 14573456.

Almost surely, 230310626320 is an apocalyptic number.

It is an amenable number.

30310626320 is an abundant number, since it is smaller than the sum of its proper divisors (45582521416).

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

30310626320 is a wasteful number, since it uses less digits than its factorization.

30310626320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29144859 (or 29144853 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

The spelling of 30310626320 in words is "thirty billion, three hundred ten million, six hundred twenty-six thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 29144833 58289666 116579332 145724165 233158664 291448330 378882829 466317328 582896660 757765658 1165793320 1515531316 1894414145 2331586640 3031062632 3788828290 6062125264 7577656580 15155313160 30310626320