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142534860 = 223513414457
BaseRepresentation
bin10000111111011…
…10100011001100
3100221012112001220
420133232203030
5242442103420
622051003340
73350345346
oct1037564314
9327175056
10142534860
1173503606
123b899550
13236b7070
1414d04296
15c7a7840
hex87ee8cc

142534860 has 96 divisors (see below), whose sum is σ = 440379072. Its totient is φ = 34222080.

The previous prime is 142534853. The next prime is 142534877. The reversal of 142534860 is 68435241.

142534860 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29752 + ... + 34208.

It is an arithmetic number, because the mean of its divisors is an integer number (4587282).

Almost surely, 2142534860 is an apocalyptic number.

142534860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142534860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220189536).

142534860 is an abundant number, since it is smaller than the sum of its proper divisors (297844212).

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

142534860 is a wasteful number, since it uses less digits than its factorization.

142534860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523 (or 4521 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 142534860 is about 11938.7964217504. The cubic root of 142534860 is about 522.3645520874.

The spelling of 142534860 in words is "one hundred forty-two million, five hundred thirty-four thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 41 52 60 65 78 82 123 130 156 164 195 205 246 260 390 410 492 533 615 780 820 1066 1230 1599 2132 2460 2665 3198 4457 5330 6396 7995 8914 10660 13371 15990 17828 22285 26742 31980 44570 53484 57941 66855 89140 115882 133710 173823 182737 231764 267420 289705 347646 365474 548211 579410 695292 730948 869115 913685 1096422 1158820 1738230 1827370 2192844 2375581 2741055 3476460 3654740 4751162 5482110 7126743 9502324 10964220 11877905 14253486 23755810 28506972 35633715 47511620 71267430 142534860