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142053230 = 25112235791
BaseRepresentation
bin10000111011110…
…00111101101110
3100220022001101202
420131320331232
5242331200410
622032405502
73343301234
oct1035707556
9326261352
10142053230
1173204770
123b6a6892
1323578a87
1414c1a954
15c70eca5
hex8778f6e

142053230 has 32 divisors (see below), whose sum is σ = 280240128. Its totient is φ = 51415200.

The previous prime is 142053203. The next prime is 142053239. The reversal of 142053230 is 32350241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142053239) 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, 21635 + ... + 27425.

It is an arithmetic number, because the mean of its divisors is an integer number (8757504).

Almost surely, 2142053230 is an apocalyptic number.

142053230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142053230 is a deficient number, since it is larger than the sum of its proper divisors (138186898).

142053230 is a wasteful number, since it uses less digits than its factorization.

142053230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6032.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 142053230 is about 11918.6085597271. The cubic root of 142053230 is about 521.7755257833.

The spelling of 142053230 in words is "one hundred forty-two million, fifty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 223 446 1115 2230 2453 4906 5791 11582 12265 24530 28955 57910 63701 127402 318505 637010 1291393 2582786 6456965 12913930 14205323 28410646 71026615 142053230