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285389618102 = 21146712443953
BaseRepresentation
bin1000010011100101000…
…10111111101110110110
31000021122021220201121122
410021302202333232312
514133434220234402
6335034533543542
726422135504631
oct4116242775666
91007567821548
10285389618102
1110003aaaa116
12473884a4bb2
1320bb1c2a814
14db5497cc18
157654babca2
hex42728bfbb6

285389618102 has 8 divisors (see below), whose sum is σ = 428121793416. Its totient is φ = 142682353632.

The previous prime is 285389618099. The next prime is 285389618159. The reversal of 285389618102 is 201816983582.

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

It is a congruent number.

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, 6199043 + ... + 6244910.

It is an arithmetic number, because the mean of its divisors is an integer number (53515224177).

Almost surely, 2285389618102 is an apocalyptic number.

285389618102 is a deficient number, since it is larger than the sum of its proper divisors (142732175314).

285389618102 is a wasteful number, since it uses less digits than its factorization.

285389618102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12455422.

The product of its (nonzero) digits is 1658880, while the sum is 53.

The spelling of 285389618102 in words is "two hundred eighty-five billion, three hundred eighty-nine million, six hundred eighteen thousand, one hundred two".

Divisors: 1 2 11467 22934 12443953 24887906 142694809051 285389618102