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387080402 = 2892174609
BaseRepresentation
bin10111000100100…
…110000011010010
3222222100201111012
4113010212003102
51243043033102
6102224250522
712410062202
oct2704460322
9888321435
10387080402
11189551265
12a9770a42
1362269b77
14395a0402
1523eb0752
hex171260d2

387080402 has 8 divisors (see below), whose sum is σ = 587144700. Its totient is φ = 191365504.

The previous prime is 387080401. The next prime is 387080413. The reversal of 387080402 is 204080783.

It can be written as a sum of positive squares in 2 ways, for example, as 321162241 + 65918161 = 17921^2 + 8119^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3870804022 = 299662475224963208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (387080401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1087127 + ... + 1087482.

Almost surely, 2387080402 is an apocalyptic number.

387080402 is a deficient number, since it is larger than the sum of its proper divisors (200064298).

387080402 is a wasteful number, since it uses less digits than its factorization.

387080402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174700.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 387080402 is about 19674.3589984528. The cubic root of 387080402 is about 728.7866263231.

The spelling of 387080402 in words is "three hundred eighty-seven million, eighty thousand, four hundred two".

Divisors: 1 2 89 178 2174609 4349218 193540201 387080402