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387942696 = 2335199559
BaseRepresentation
bin10111000111111…
…000100100101000
31000000222112100000
4113013320210220
51243303131241
6102254543000
712420313161
oct2707704450
91000875300
10387942696
11189a900a9
12a9b07a60
13624ac4bb
1439746768
15240d0eb6
hex171f8928

387942696 has 48 divisors (see below), whose sum is σ = 1089597600. Its totient is φ = 129313584.

The previous prime is 387942683. The next prime is 387942719. The reversal of 387942696 is 696249783.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97836 + ... + 101723.

It is an arithmetic number, because the mean of its divisors is an integer number (22699950).

Almost surely, 2387942696 is an apocalyptic number.

387942696 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

387942696 is an abundant number, since it is smaller than the sum of its proper divisors (701654904).

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

387942696 is a wasteful number, since it uses less digits than its factorization.

387942696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199580 (or 199564 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 387942696 is about 19696.2609649649. The cubic root of 387942696 is about 729.3273944782.

The spelling of 387942696 in words is "three hundred eighty-seven million, nine hundred forty-two thousand, six hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 243 324 486 648 972 1944 199559 399118 598677 798236 1197354 1596472 1796031 2394708 3592062 4789416 5388093 7184124 10776186 14368248 16164279 21552372 32328558 43104744 48492837 64657116 96985674 129314232 193971348 387942696