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320030038386 = 23234950943973
BaseRepresentation
bin1001010100000110100…
…01101101100101110010
31010121001102222101220200
410222003101231211302
520220410142212021
6403004134220030
732056433304612
oct4520321554562
91117042871820
10320030038386
111137a6682633
12520354b4616
13242427c2b26
14116bd406a42
1584d0db0126
hex4a8346d972

320030038386 has 24 divisors (see below), whose sum is σ = 695385245100. Its totient is φ = 106371013536.

The previous prime is 320030038381. The next prime is 320030038387. The reversal of 320030038386 is 683830030023.

It can be written as a sum of positive squares in 2 ways, for example, as 308601359361 + 11428679025 = 555519^2 + 106905^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 320030038386.

It is not an unprimeable number, because it can be changed into a prime (320030038381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25465705 + ... + 25478268.

Almost surely, 2320030038386 is an apocalyptic number.

320030038386 is an abundant number, since it is smaller than the sum of its proper divisors (375355206714).

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

320030038386 is a wasteful number, since it uses less digits than its factorization.

320030038386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50944330 (or 50944327 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 320030038386 in words is "three hundred twenty billion, thirty million, thirty-eight thousand, three hundred eighty-six".

Divisors: 1 2 3 6 9 18 349 698 1047 2094 3141 6282 50943973 101887946 152831919 305663838 458495757 916991514 17779446577 35558893154 53338339731 106676679462 160015019193 320030038386