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138285002 = 2193639079
BaseRepresentation
bin10000011111000…
…00111111001010
3100122012121100202
420033200333022
5240400110002
621415532202
73266255162
oct1017407712
9318177322
10138285002
1171070629
123a38a062
132285985b
14145195a2
15c218502
hex83e0fca

138285002 has 8 divisors (see below), whose sum is σ = 218344800. Its totient is φ = 65503404.

The previous prime is 138284999. The next prime is 138285011. The reversal of 138285002 is 200582831.

138285002 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1819502 + ... + 1819577.

It is an arithmetic number, because the mean of its divisors is an integer number (27293100).

Almost surely, 2138285002 is an apocalyptic number.

138285002 is a deficient number, since it is larger than the sum of its proper divisors (80059798).

138285002 is a wasteful number, since it uses less digits than its factorization.

138285002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639100.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 138285002 is about 11759.4643585497. The cubic root of 138285002 is about 517.1204270840.

The spelling of 138285002 in words is "one hundred thirty-eight million, two hundred eighty-five thousand, two".

Divisors: 1 2 19 38 3639079 7278158 69142501 138285002