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142494452 = 22192637129
BaseRepresentation
bin10000111111001…
…00101011110100
3100221010110122022
420133210223310
5242434310302
622050052312
73350116502
oct1037445364
9327113568
10142494452
1173486211
123b87a098
13236a1859
1414cd3672
15c79a8a2
hex87e4af4

142494452 has 24 divisors (see below), whose sum is σ = 263524800. Its totient is φ = 67231296.

The previous prime is 142494449. The next prime is 142494463. The reversal of 142494452 is 254494241.

142494452 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16424 + ... + 23552.

It is an arithmetic number, because the mean of its divisors is an integer number (10980200).

Almost surely, 2142494452 is an apocalyptic number.

It is an amenable number.

142494452 is a deficient number, since it is larger than the sum of its proper divisors (121030348).

142494452 is a wasteful number, since it uses less digits than its factorization.

142494452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7415 (or 7413 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 142494452 is about 11937.1040039031. The cubic root of 142494452 is about 522.3151847448.

The spelling of 142494452 in words is "one hundred forty-two million, four hundred ninety-four thousand, four hundred fifty-two".

Divisors: 1 2 4 19 38 76 263 526 1052 4997 7129 9994 14258 19988 28516 135451 270902 541804 1874927 3749854 7499708 35623613 71247226 142494452