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142066725 = 35216311621
BaseRepresentation
bin10000111011111…
…00010000100101
3100220022201220120
420131330100211
5242332113400
622032552153
73343355463
oct1035742045
9326281816
10142066725
1173213919
123b6b2659
1323581c68
1414c21833
15c713ca0
hex877c425

142066725 has 24 divisors (see below), whose sum is σ = 236344992. Its totient is φ = 75297600.

The previous prime is 142066703. The next prime is 142066783. The reversal of 142066725 is 527660241.

It is not a de Polignac number, because 142066725 - 27 = 142066597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6415 + ... + 18035.

It is an arithmetic number, because the mean of its divisors is an integer number (9847708).

Almost surely, 2142066725 is an apocalyptic number.

142066725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142066725 is a deficient number, since it is larger than the sum of its proper divisors (94278267).

142066725 is a wasteful number, since it uses less digits than its factorization.

142066725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11797 (or 11792 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 142066725 is about 11919.1746778038. The cubic root of 142066725 is about 521.7920480822.

The spelling of 142066725 in words is "one hundred forty-two million, sixty-six thousand, seven hundred twenty-five".

Divisors: 1 3 5 15 25 75 163 489 815 2445 4075 11621 12225 34863 58105 174315 290525 871575 1894223 5682669 9471115 28413345 47355575 142066725