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28982605194 = 2332153249287
BaseRepresentation
bin11010111111011111…
…110111010110001010
32202210211212220002000
4122333133313112022
5433324021331234
621151525451430
72044134036144
oct327737672612
982724786060
1028982605194
1111322a1a284
12574a270b76
13296b67753a
14158d28dc94
15b4965d899
hex6bf7f758a

28982605194 has 32 divisors (see below), whose sum is σ = 64435962240. Its totient is φ = 9656342496.

The previous prime is 28982605181. The next prime is 28982605229. The reversal of 28982605194 is 49150628982.

It is a happy number.

28982605194 is a `hidden beast` number, since 28 + 9 + 8 + 2 + 605 + 1 + 9 + 4 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 28982605194.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8382 + ... + 240905.

It is an arithmetic number, because the mean of its divisors is an integer number (2013623820).

Almost surely, 228982605194 is an apocalyptic number.

28982605194 is an abundant number, since it is smaller than the sum of its proper divisors (35453357046).

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

28982605194 is a wasteful number, since it uses less digits than its factorization.

28982605194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251451 (or 251445 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 28982605194 in words is "twenty-eight billion, nine hundred eighty-two million, six hundred five thousand, one hundred ninety-four".

Divisors: 1 2 3 6 9 18 27 54 2153 4306 6459 12918 19377 38754 58131 116262 249287 498574 747861 1495722 2243583 4487166 6730749 13461498 536714911 1073429822 1610144733 3220289466 4830434199 9660868398 14491302597 28982605194