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142715860 = 22571019399
BaseRepresentation
bin10001000000110…
…10101111010100
3100221112201100121
420200122233110
5243013401420
622054521324
73352031140
oct1040325724
9327481317
10142715860
11736175a1
123b966244
132374b571
1414d50220
15c7e12aa
hex881abd4

142715860 has 24 divisors (see below), whose sum is σ = 342518400. Its totient is φ = 48931104.

The previous prime is 142715857. The next prime is 142715863. The reversal of 142715860 is 68517241.

It is an interprime number because it is at equal distance from previous prime (142715857) and next prime (142715863).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142715863) 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, 509560 + ... + 509839.

It is an arithmetic number, because the mean of its divisors is an integer number (14271600).

Almost surely, 2142715860 is an apocalyptic number.

142715860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142715860 is an abundant number, since it is smaller than the sum of its proper divisors (199802540).

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

142715860 is a wasteful number, since it uses less digits than its factorization.

142715860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019415 (or 1019413 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 142715860 is about 11946.3743453819. The cubic root of 142715860 is about 522.5855693438.

The spelling of 142715860 in words is "one hundred forty-two million, seven hundred fifteen thousand, eight hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1019399 2038798 4077596 5096995 7135793 10193990 14271586 20387980 28543172 35678965 71357930 142715860