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342195431 = 1720129143
BaseRepresentation
bin10100011001010…
…111110011100111
3212211220022212212
4110121113303213
51200100223211
653542234035
711323420214
oct2431276347
9784808785
10342195431
11166184546
129672591b
1355b82a06
1433638b0b
152009638b
hex14657ce7

342195431 has 4 divisors (see below), whose sum is σ = 362324592. Its totient is φ = 322066272.

The previous prime is 342195383. The next prime is 342195433. The reversal of 342195431 is 134591243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134591243 = 314341653.

It is a cyclic number.

It is not a de Polignac number, because 342195431 - 26 = 342195367 is a prime.

It is a super-2 number, since 2×3421954312 = 234195425994551522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342195433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10064555 + ... + 10064588.

It is an arithmetic number, because the mean of its divisors is an integer number (90581148).

Almost surely, 2342195431 is an apocalyptic number.

342195431 is a deficient number, since it is larger than the sum of its proper divisors (20129161).

342195431 is a wasteful number, since it uses less digits than its factorization.

342195431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20129160.

The product of its digits is 12960, while the sum is 32.

The square root of 342195431 is about 18498.5251033697. The cubic root of 342195431 is about 699.4522456403.

The spelling of 342195431 in words is "three hundred forty-two million, one hundred ninety-five thousand, four hundred thirty-one".

Divisors: 1 17 20129143 342195431