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30302422440 = 2335397636071
BaseRepresentation
bin11100001110001010…
…100100010110101000
32220012211100112222020
4130032022210112220
5444024410004230
621530514024440
72121631224633
oct341612442650
986184315866
1030302422440
111193aa22534
125a58278120
132b1bc306a4
14167668cc1a
15bc5465810
hex70e2a45a8

30302422440 has 64 divisors (see below), whose sum is σ = 91136396160. Its totient is φ = 8060279040.

The previous prime is 30302422433. The next prime is 30302422453. The reversal of 30302422440 is 4422420303.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30302422440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270396 + ... + 365675.

It is an arithmetic number, because the mean of its divisors is an integer number (1424006190).

Almost surely, 230302422440 is an apocalyptic number.

30302422440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30302422440 is an abundant number, since it is smaller than the sum of its proper divisors (60833973720).

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

30302422440 is a wasteful number, since it uses less digits than its factorization.

30302422440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636482 (or 636478 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 30302422440 its reverse (4422420303), we get a palindrome (34724842743).

The spelling of 30302422440 in words is "thirty billion, three hundred two million, four hundred twenty-two thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 397 794 1191 1588 1985 2382 3176 3970 4764 5955 7940 9528 11910 15880 23820 47640 636071 1272142 1908213 2544284 3180355 3816426 5088568 6360710 7632852 9541065 12721420 15265704 19082130 25442840 38164260 76328520 252520187 505040374 757560561 1010080748 1262600935 1515121122 2020161496 2525201870 3030242244 3787802805 5050403740 6060484488 7575605610 10100807480 15151211220 30302422440