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387878796 = 223210774411
BaseRepresentation
bin10111000111101…
…000111110001100
31000000212021200100
4113013220332030
51243244110141
6102253331100
712416625654
oct2707507614
91000767610
10387878796
11189a47098
12a9a96a90
13624893a6
143972b364
15240bc0b6
hex171e8f8c

387878796 has 18 divisors (see below), whose sum is σ = 980471492. Its totient is φ = 129292920.

The previous prime is 387878773. The next prime is 387878797. The reversal of 387878796 is 697878783.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (387878797) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5387170 + ... + 5387241.

Almost surely, 2387878796 is an apocalyptic number.

387878796 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

387878796 is an abundant number, since it is smaller than the sum of its proper divisors (592592696).

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

387878796 is a wasteful number, since it uses less digits than its factorization.

387878796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10774421 (or 10774416 counting only the distinct ones).

The product of its digits is 28449792, while the sum is 63.

The square root of 387878796 is about 19694.6387628715. The cubic root of 387878796 is about 729.2873485470.

The spelling of 387878796 in words is "three hundred eighty-seven million, eight hundred seventy-eight thousand, seven hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 36 10774411 21548822 32323233 43097644 64646466 96969699 129292932 193939398 387878796