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30890635370 = 257263042113
BaseRepresentation
bin11100110001001110…
…011011000001101010
32221201211011212102022
4130301032123001222
51001231000312440
622105125304442
72142333032300
oct346116330152
987654155368
1030890635370
1112111a5a621
125ba1265122
132bb3a6018a
1416d0848270
15c0be05cb5
hex73139b06a

30890635370 has 24 divisors (see below), whose sum is σ = 64681208964. Its totient is φ = 10591074816.

The previous prime is 30890635361. The next prime is 30890635403. The reversal of 30890635370 is 7353609803.

It can be written as a sum of positive squares in 2 ways, for example, as 30745167649 + 145467721 = 175343^2 + 12061^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31520567 + ... + 31521546.

Almost surely, 230890635370 is an apocalyptic number.

30890635370 is an abundant number, since it is smaller than the sum of its proper divisors (33790573594).

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

30890635370 is a wasteful number, since it uses less digits than its factorization.

30890635370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63042134 (or 63042127 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 30890635370 in words is "thirty billion, eight hundred ninety million, six hundred thirty-five thousand, three hundred seventy".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 63042113 126084226 315210565 441294791 630421130 882589582 2206473955 3089063537 4412947910 6178127074 15445317685 30890635370