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12887072942 = 233191941409
BaseRepresentation
bin11000000000010000…
…10010000010101110
31020021010022010122212
430000020102002232
5202343042313232
65530434410422
7634232212142
oct140010220256
936233263585
1012887072942
115513464707
1225b7a30a12
1312a4b83263
148a3771222
15506596eb2
hex3002120ae

12887072942 has 8 divisors (see below), whose sum is σ = 19336443600. Its totient is φ = 6441591744.

The previous prime is 12887072903. The next prime is 12887072969. The reversal of 12887072942 is 24927078821.

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, 964067 + ... + 977342.

It is an arithmetic number, because the mean of its divisors is an integer number (2417055450).

Almost surely, 212887072942 is an apocalyptic number.

12887072942 is a deficient number, since it is larger than the sum of its proper divisors (6449370658).

12887072942 is a wasteful number, since it uses less digits than its factorization.

12887072942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944730.

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 12887072942 in words is "twelve billion, eight hundred eighty-seven million, seventy-two thousand, nine hundred forty-two".

Divisors: 1 2 3319 6638 1941409 3882818 6443536471 12887072942