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142000656 = 2437422621
BaseRepresentation
bin10000111011011…
…00001000010000
3100220012101021120
420131230020100
5242323010111
622031322240
73342662040
oct1035541020
9326171246
10142000656
1173179216
123b680380
132355ab75
1414c05720
15c6ee406
hex876c210

142000656 has 40 divisors (see below), whose sum is σ = 419241024. Its totient is φ = 40571520.

The previous prime is 142000631. The next prime is 142000673. The reversal of 142000656 is 656000241.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 210975 + ... + 211646.

Almost surely, 2142000656 is an apocalyptic number.

142000656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142000656 is an abundant number, since it is smaller than the sum of its proper divisors (277240368).

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

142000656 is a wasteful number, since it uses less digits than its factorization.

142000656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422639 (or 422633 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 142000656 is about 11916.4028129297. The cubic root of 142000656 is about 521.7111480113.

Adding to 142000656 its reverse (656000241), we get a palindrome (798000897).

The spelling of 142000656 in words is "one hundred forty-two million, six hundred fifty-six", and thus it is an aban number.

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 422621 845242 1267863 1690484 2535726 2958347 3380968 5071452 5916694 6761936 8875041 10142904 11833388 17750082 20285808 23666776 35500164 47333552 71000328 142000656