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7142342642 = 238961914831
BaseRepresentation
bin1101010011011011…
…10111111111110010
3200102202120121011222
412221231313333302
5104111414431032
63140421105042
7341664624251
oct65155677762
920382517158
107142342642
113035736816
121473b58182
1389a953666
144ba810798
152bc084a12
hex1a9b77ff2

7142342642 has 16 divisors (see below), whose sum is σ = 10759132800. Its totient is φ = 3555996720.

The previous prime is 7142342609. The next prime is 7142342659. The reversal of 7142342642 is 2462432417.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474167 + ... + 488997.

It is an arithmetic number, because the mean of its divisors is an integer number (672445800).

Almost surely, 27142342642 is an apocalyptic number.

7142342642 is a deficient number, since it is larger than the sum of its proper divisors (3616790158).

7142342642 is a wasteful number, since it uses less digits than its factorization.

7142342642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15841.

The product of its digits is 64512, while the sum is 35.

The square root of 7142342642 is about 84512.3815899185. The cubic root of 7142342642 is about 1925.8105445455.

The spelling of 7142342642 in words is "seven billion, one hundred forty-two million, three hundred forty-two thousand, six hundred forty-two".

Divisors: 1 2 389 619 778 1238 14831 29662 240791 481582 5769259 9180389 11538518 18360778 3571171321 7142342642