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97142142 = 2316190357
BaseRepresentation
bin1011100101001…
…00010101111110
320202210022222010
411302210111332
5144332022032
613350032050
72256460146
oct562442576
9222708863
1097142142
114a91a369
1228648626
1317182a76
14cc89926
1587dcccc
hex5ca457e

97142142 has 8 divisors (see below), whose sum is σ = 194284296. Its totient is φ = 32380712.

The previous prime is 97142119. The next prime is 97142147. The reversal of 97142142 is 24124179.

It is a sphenic number, since it is the product of 3 distinct primes.

97142142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97142147) 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, 8095173 + ... + 8095184.

It is an arithmetic number, because the mean of its divisors is an integer number (24285537).

Almost surely, 297142142 is an apocalyptic number.

97142142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

97142142 is a wasteful number, since it uses less digits than its factorization.

97142142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16190362.

The product of its digits is 4032, while the sum is 30.

The square root of 97142142 is about 9856.0713268523. The cubic root of 97142142 is about 459.6944126641.

The spelling of 97142142 in words is "ninety-seven million, one hundred forty-two thousand, one hundred forty-two".

Divisors: 1 2 3 6 16190357 32380714 48571071 97142142