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159207142 = 21747671487
BaseRepresentation
bin10010111110101…
…00111011100110
3102002120120010211
421133110323212
5311224112032
623444210034
73642144523
oct1137247346
9362516124
10159207142
1181960756
124539991a
1326ca3913
141720414a
15de9c747
hex97d4ee6

159207142 has 32 divisors (see below), whose sum is σ = 262268928. Its totient is φ = 72183936.

The previous prime is 159207121. The next prime is 159207143. The reversal of 159207142 is 241702951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159207143) 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 15 ways as a sum of consecutive naturals, for example, 106323 + ... + 107809.

It is an arithmetic number, because the mean of its divisors is an integer number (8195904).

Almost surely, 2159207142 is an apocalyptic number.

159207142 is a deficient number, since it is larger than the sum of its proper divisors (103061786).

159207142 is a wasteful number, since it uses less digits than its factorization.

159207142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 159207142 is about 12617.7312540726. The cubic root of 159207142 is about 541.9853098055.

The spelling of 159207142 in words is "one hundred fifty-nine million, two hundred seven thousand, one hundred forty-two".

Divisors: 1 2 17 34 47 67 94 134 799 1139 1487 1598 2278 2974 3149 6298 25279 50558 53533 69889 99629 107066 139778 199258 1188113 1693693 2376226 3387386 4682563 9365126 79603571 159207142