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142467860 = 22528325171
BaseRepresentation
bin10000111110111…
…10001100010100
3100221002010011102
420133132030110
5242432432420
622045325232
73346646123
oct1037361424
9327063142
10142467860
1173468237
123b866818
1323692712
1414cc7aba
15c792a75
hex87de314

142467860 has 24 divisors (see below), whose sum is σ = 300251616. Its totient is φ = 56783520.

The previous prime is 142467841. The next prime is 142467863. The reversal of 142467860 is 68764241.

142467860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1424678602 = 40594182265959200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142467863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6926 + ... + 18245.

It is an arithmetic number, because the mean of its divisors is an integer number (12510484).

Almost surely, 2142467860 is an apocalyptic number.

142467860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142467860 is an abundant number, since it is smaller than the sum of its proper divisors (157783756).

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

142467860 is a wasteful number, since it uses less digits than its factorization.

142467860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25463 (or 25461 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 142467860 is about 11935.9901139369. The cubic root of 142467860 is about 522.2826916213.

The spelling of 142467860 in words is "one hundred forty-two million, four hundred sixty-seven thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 283 566 1132 1415 2830 5660 25171 50342 100684 125855 251710 503420 7123393 14246786 28493572 35616965 71233930 142467860