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38780568002 = 2112126592
BaseRepresentation
bin100100000111100000…
…001000000111000010
310201002200110222021102
4210013200020013002
51113410311134002
625452054054402
72542006250321
oct440740100702
9121080428242
1038780568002
11154a068a800
12762364a402
133870546377
141c3c6600b8
15101e90da02
hex9078081c2

38780568002 has 18 divisors (see below), whose sum is σ = 63944913459. Its totient is φ = 17626138420.

The previous prime is 38780567999. The next prime is 38780568023. The reversal of 38780568002 is 20086508783.

It can be written as a sum of positive squares in only one way, i.e., 19390284001 + 19390284001 = 139249^2 + 139249^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=139249.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3057149 + ... + 3069807.

Almost surely, 238780568002 is an apocalyptic number.

38780568002 is a deficient number, since it is larger than the sum of its proper divisors (25164345457).

38780568002 is an frugal number, since it uses more digits than its factorization.

38780568002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25342 (or 12672 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 38780568002 in words is "thirty-eight billion, seven hundred eighty million, five hundred sixty-eight thousand, two".

Divisors: 1 2 11 22 121 242 12659 25318 139249 278498 1531739 3063478 160250281 320500562 1762753091 3525506182 19390284001 38780568002