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30130525220 = 2251506526261
BaseRepresentation
bin11100000011111010…
…110101010000100100
32212202211220021022112
4130003322311100210
5443201403301340
621501453420152
72114443144565
oct340372652044
985684807275
1030130525220
1111861994614
125a0a79a658
132ac2435963
14165b90416c
15bb530d065
hex703eb5424

30130525220 has 12 divisors (see below), whose sum is σ = 63274103004. Its totient is φ = 12052210080.

The previous prime is 30130525211. The next prime is 30130525253. The reversal of 30130525220 is 2252503103.

It can be written as a sum of positive squares in 2 ways, for example, as 12754540096 + 17375985124 = 112936^2 + 131818^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753263111 + ... + 753263150.

It is an arithmetic number, because the mean of its divisors is an integer number (5272841917).

Almost surely, 230130525220 is an apocalyptic number.

It is an amenable number.

30130525220 is an abundant number, since it is smaller than the sum of its proper divisors (33143577784).

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

30130525220 is a wasteful number, since it uses less digits than its factorization.

30130525220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506526270 (or 1506526268 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The spelling of 30130525220 in words is "thirty billion, one hundred thirty million, five hundred twenty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1506526261 3013052522 6026105044 7532631305 15065262610 30130525220