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142661070 = 23253151133
BaseRepresentation
bin10001000000011…
…01010111001110
3100221102221012100
420200031113032
5243010123240
622053415530
73351412326
oct1040152716
9327387170
10142661070
117358a412
123b93a5a6
132372c646
1414d38286
15c7cee30
hex880d5ce

142661070 has 48 divisors (see below), whose sum is σ = 382891392. Its totient is φ = 36815040.

The previous prime is 142661047. The next prime is 142661087. The reversal of 142661070 is 70166241.

142661070 is a `hidden beast` number, since 1 + 42 + 6 + 610 + 7 + 0 = 666.

142661070 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22777 + ... + 28356.

It is an arithmetic number, because the mean of its divisors is an integer number (7976904).

Almost surely, 2142661070 is an apocalyptic number.

142661070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142661070 is an abundant number, since it is smaller than the sum of its proper divisors (240230322).

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

142661070 is a wasteful number, since it uses less digits than its factorization.

142661070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51177 (or 51174 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 142661070 is about 11944.0809608777. The cubic root of 142661070 is about 522.5186855645.

The spelling of 142661070 in words is "one hundred forty-two million, six hundred sixty-one thousand, seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 31 45 62 90 93 155 186 279 310 465 558 930 1395 2790 51133 102266 153399 255665 306798 460197 511330 766995 920394 1533990 1585123 2300985 3170246 4601970 4755369 7925615 9510738 14266107 15851230 23776845 28532214 47553690 71330535 142661070