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342502871 = 1272696873
BaseRepresentation
bin10100011010100…
…010110111010111
3212212110221121112
4110122202313113
51200140042441
653553005235
711326140434
oct2432426727
9785427545
10342502871
11166374527
129685381b
1355c5c929
14336b8b8b
15201074eb
hex146a2dd7

342502871 has 4 divisors (see below), whose sum is σ = 345199872. Its totient is φ = 339805872.

The previous prime is 342502837. The next prime is 342502891. The reversal of 342502871 is 178205243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178205243 = 712509933.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-342502871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342502891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1348310 + ... + 1348563.

It is an arithmetic number, because the mean of its divisors is an integer number (86299968).

Almost surely, 2342502871 is an apocalyptic number.

342502871 is a deficient number, since it is larger than the sum of its proper divisors (2697001).

342502871 is a wasteful number, since it uses less digits than its factorization.

342502871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697000.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 342502871 is about 18506.8330894294. The cubic root of 342502871 is about 699.6616534926.

The spelling of 342502871 in words is "three hundred forty-two million, five hundred two thousand, eight hundred seventy-one".

Divisors: 1 127 2696873 342502871