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142503660 = 223251360899
BaseRepresentation
bin10000111111001…
…10111011101100
3100221010221021100
420133212323230
5242440104120
622050203100
73350155365
oct1037467354
9327127240
10142503660
1173492122
123b883490
13236a5ac0
1414cd6b6c
15c79d490
hex87e6eec

142503660 has 72 divisors (see below), whose sum is σ = 465519600. Its totient is φ = 35077248.

The previous prime is 142503631. The next prime is 142503721. The reversal of 142503660 is 66305241.

It is a super-2 number, since 2×1425036602 = 40614586226791200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28110 + ... + 32789.

It is an arithmetic number, because the mean of its divisors is an integer number (6465550).

Almost surely, 2142503660 is an apocalyptic number.

142503660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142503660 is an abundant number, since it is smaller than the sum of its proper divisors (323015940).

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

142503660 is a wasteful number, since it uses less digits than its factorization.

142503660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60927 (or 60922 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 142503660 is about 11937.4896858594. The cubic root of 142503660 is about 522.3264351820.

The spelling of 142503660 in words is "one hundred forty-two million, five hundred three thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 180 195 234 260 390 468 585 780 1170 2340 60899 121798 182697 243596 304495 365394 548091 608990 730788 791687 913485 1096182 1217980 1583374 1826970 2192364 2375061 2740455 3166748 3653940 3958435 4750122 5480910 7125183 7916870 9500244 10961820 11875305 14250366 15833740 23750610 28500732 35625915 47501220 71251830 142503660