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342912087 = 3277277487
BaseRepresentation
bin10100011100000…
…110110001010111
3212220020201221200
4110130012301113
51200241141322
654005443543
711332463460
oct2434066127
9786221850
10342912087
11166623a21
1296a105b3
1356073c7b
1433783d67
15201888ac
hex14706c57

342912087 has 24 divisors (see below), whose sum is σ = 566931456. Its totient is φ = 195654096.

The previous prime is 342912043. The next prime is 342912103. The reversal of 342912087 is 780219243.

It is not a de Polignac number, because 342912087 - 26 = 342912023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342912007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42058 + ... + 49544.

It is an arithmetic number, because the mean of its divisors is an integer number (23622144).

Almost surely, 2342912087 is an apocalyptic number.

342912087 is a deficient number, since it is larger than the sum of its proper divisors (224019369).

342912087 is a wasteful number, since it uses less digits than its factorization.

342912087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8227 (or 8224 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 342912087 is about 18517.8855974434. The cubic root of 342912087 is about 699.9401901279.

The spelling of 342912087 in words is "three hundred forty-two million, nine hundred twelve thousand, eighty-seven".

Divisors: 1 3 7 9 21 63 727 2181 5089 6543 7487 15267 22461 45801 52409 67383 157227 471681 5443049 16329147 38101343 48987441 114304029 342912087