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142183900 = 22524134679
BaseRepresentation
bin10000111100110…
…00110111011100
3100220112200122101
420132120313130
5242344341100
622035254444
73344354215
oct1036306734
9326480571
10142183900
1173293961
123b74a424
13235c33b1
1414c5240c
15c73886a
hex8798ddc

142183900 has 36 divisors (see below), whose sum is σ = 316073520. Its totient is φ = 55484800.

The previous prime is 142183891. The next prime is 142183901. The reversal of 142183900 is 9381241.

It is a happy number.

142183900 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1421839002 = 40432522838420000, which contains 22 as substring.

142183900 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142183901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13240 + ... + 21439.

It is an arithmetic number, because the mean of its divisors is an integer number (8779820).

Almost surely, 2142183900 is an apocalyptic number.

142183900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142183900 is an abundant number, since it is smaller than the sum of its proper divisors (173889620).

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

142183900 is a wasteful number, since it uses less digits than its factorization.

142183900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34734 (or 34727 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 142183900 is about 11924.0890637398. The cubic root of 142183900 is about 521.9354646856.

The spelling of 142183900 in words is "one hundred forty-two million, one hundred eighty-three thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 41 50 82 100 164 205 410 820 1025 2050 4100 34679 69358 138716 173395 346790 693580 866975 1421839 1733950 2843678 3467900 5687356 7109195 14218390 28436780 35545975 71091950 142183900