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30220319980 = 22511333739679
BaseRepresentation
bin11100001001010001…
…010111110011101100
32220000002212022120101
4130021101113303230
5443342400214410
621514422200444
72116613324104
oct341121276354
986002768511
1030220319980
11118a8645764
125a34883124
132b07c15356
1416697da204
15bbd148d3a
hex709457cec

30220319980 has 48 divisors (see below), whose sum is σ = 64215889920. Its totient is φ = 11945299968.

The previous prime is 30220319951. The next prime is 30220319981. The reversal of 30220319980 is 8991302203.

It is not an unprimeable number, because it can be changed into a prime (30220319981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741781 + ... + 781459.

It is an arithmetic number, because the mean of its divisors is an integer number (1337831040).

Almost surely, 230220319980 is an apocalyptic number.

It is an amenable number.

30220319980 is an abundant number, since it is smaller than the sum of its proper divisors (33995569940).

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

30220319980 is a wasteful number, since it uses less digits than its factorization.

30220319980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40138 (or 40136 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 30220319980 in words is "thirty billion, two hundred twenty million, three hundred nineteen thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 113 226 337 452 565 674 1130 1348 1685 2260 3370 6740 38081 39679 76162 79358 152324 158716 190405 198395 380810 396790 761620 793580 4483727 8967454 13371823 17934908 22418635 26743646 44837270 53487292 66859115 89674540 133718230 267436460 1511015999 3022031998 6044063996 7555079995 15110159990 30220319980