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142429330 = 2543331231
BaseRepresentation
bin10000111110101…
…00110010010010
3100221000011022101
420133110302102
5242430214310
622044431014
73346425601
oct1037246222
9327004271
10142429330
117344129a
123b84846a
132367b014
1414cb7a38
15c78643a
hex87d4c92

142429330 has 16 divisors (see below), whose sum is σ = 262335744. Its totient is φ = 55646640.

The previous prime is 142429307. The next prime is 142429369. The reversal of 142429330 is 33924241.

It is a super-2 number, since 2×1424293302 = 40572228088497800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 165186 + ... + 166045.

It is an arithmetic number, because the mean of its divisors is an integer number (16395984).

Almost surely, 2142429330 is an apocalyptic number.

142429330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142429330 is a deficient number, since it is larger than the sum of its proper divisors (119906414).

142429330 is a wasteful number, since it uses less digits than its factorization.

142429330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331281.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 142429330 is about 11934.3759786593. The cubic root of 142429330 is about 522.2356041203.

The spelling of 142429330 in words is "one hundred forty-two million, four hundred twenty-nine thousand, three hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 331231 662462 1656155 3312310 14242933 28485866 71214665 142429330