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142860024 = 23341131951
BaseRepresentation
bin10001000001111…
…01111011111000
3100221211001010000
420200331323320
5243033010044
622101553000
73353201346
oct1040757370
9327731100
10142860024
117370593a
123ba15760
132379c078
1414d8a996
15c81dd69
hex883def8

142860024 has 80 divisors (see below), whose sum is σ = 403888320. Its totient is φ = 47174400.

The previous prime is 142860017. The next prime is 142860037. The reversal of 142860024 is 420068241.

142860024 is a `hidden beast` number, since 14 + 28 + 600 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 142860024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 72249 + ... + 74199.

It is an arithmetic number, because the mean of its divisors is an integer number (5048604).

Almost surely, 2142860024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142860024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201944160).

142860024 is an abundant number, since it is smaller than the sum of its proper divisors (261028296).

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

142860024 is a wasteful number, since it uses less digits than its factorization.

142860024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082 (or 2069 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 142860024 is about 11952.4066195892. The cubic root of 142860024 is about 522.7614728786.

The spelling of 142860024 in words is "one hundred forty-two million, eight hundred sixty thousand, twenty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 113 162 216 226 324 339 452 648 678 904 1017 1356 1951 2034 2712 3051 3902 4068 5853 6102 7804 8136 9153 11706 12204 15608 17559 18306 23412 24408 35118 36612 46824 52677 70236 73224 105354 140472 158031 210708 220463 316062 421416 440926 632124 661389 881852 1264248 1322778 1763704 1984167 2645556 3968334 5291112 5952501 7936668 11905002 15873336 17857503 23810004 35715006 47620008 71430012 142860024