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142373812 = 2273412531
BaseRepresentation
bin10000111110001…
…11001110110100
3100220220100011011
420133013032310
5242421430222
622043322004
73346105000
oct1037071664
9326810134
10142373812
1173403609
123b820304
132365b979
1414ca1700
15c774c77
hex87c73b4

142373812 has 48 divisors (see below), whose sum is σ = 297763200. Its totient is φ = 59505600.

The previous prime is 142373807. The next prime is 142373831. The reversal of 142373812 is 218373241.

It is a super-2 number, since 2×1423738122 = 40540604686822688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54987 + ... + 57517.

It is an arithmetic number, because the mean of its divisors is an integer number (6203400).

Almost surely, 2142373812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142373812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148881600).

142373812 is an abundant number, since it is smaller than the sum of its proper divisors (155389388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142373812 is a wasteful number, since it uses less digits than its factorization.

142373812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597 (or 2581 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 142373812 is about 11932.0497819947. The cubic root of 142373812 is about 522.1677406537.

The spelling of 142373812 in words is "one hundred forty-two million, three hundred seventy-three thousand, eight hundred twelve".

Divisors: 1 2 4 7 14 28 41 49 82 98 164 196 287 343 574 686 1148 1372 2009 2531 4018 5062 8036 10124 14063 17717 28126 35434 56252 70868 103771 124019 207542 248038 415084 496076 726397 868133 1452794 1736266 2905588 3472532 5084779 10169558 20339116 35593453 71186906 142373812