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142010140 = 22540117707
BaseRepresentation
bin10000111011011…
…10011100011100
3100220012212021211
420131232130130
5242323311030
622031434204
73343031506
oct1035563434
9326185254
10142010140
1173185358
123b685964
132356228c
1414c08d76
15c70212a
hex876e71c

142010140 has 24 divisors (see below), whose sum is σ = 298981872. Its totient is φ = 56659200.

The previous prime is 142010137. The next prime is 142010177. The reversal of 142010140 is 41010241.

It is a self number, because there is not a number n which added to its sum of digits gives 142010140.

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, 834 + ... + 16873.

It is an arithmetic number, because the mean of its divisors is an integer number (12457578).

Almost surely, 2142010140 is an apocalyptic number.

142010140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142010140 is an abundant number, since it is smaller than the sum of its proper divisors (156971732).

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

142010140 is a wasteful number, since it uses less digits than its factorization.

142010140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18117 (or 18115 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 142010140 is about 11916.8007451665. The cubic root of 142010140 is about 521.7227625078.

Adding to 142010140 its reverse (41010241), we get a palindrome (183020381).

The spelling of 142010140 in words is "one hundred forty-two million, ten thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 401 802 1604 2005 4010 8020 17707 35414 70828 88535 177070 354140 7100507 14201014 28402028 35502535 71005070 142010140