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142495294 = 2139512573
BaseRepresentation
bin10000111111001…
…00111000111110
3100221010111210111
420133210320332
5242434322134
622050100234
73350122114
oct1037447076
9327114714
10142495294
1173486907
123b87a67a
13236a2056
1414cd3ab4
15c79ac64
hex87e4e3e

142495294 has 8 divisors (see below), whose sum is σ = 215281080. Its totient is φ = 70734936.

The previous prime is 142495291. The next prime is 142495303. The reversal of 142495294 is 492594241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142495291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256009 + ... + 256564.

It is an arithmetic number, because the mean of its divisors is an integer number (26910135).

Almost surely, 2142495294 is an apocalyptic number.

142495294 is a deficient number, since it is larger than the sum of its proper divisors (72785786).

142495294 is a wasteful number, since it uses less digits than its factorization.

142495294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512714.

The product of its digits is 103680, while the sum is 40.

The square root of 142495294 is about 11937.1392720367. The cubic root of 142495294 is about 522.3162135299.

The spelling of 142495294 in words is "one hundred forty-two million, four hundred ninety-five thousand, two hundred ninety-four".

Divisors: 1 2 139 278 512573 1025146 71247647 142495294