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142748830530 = 232510859146063
BaseRepresentation
bin1000010011110001111…
…1100100101101000010
3111122110102002221100100
42010330133210231002
54314322200034110
6145324454503230
713212310016325
oct2047437445502
9448412087310
10142748830530
11555a2aa2209
12237ba364b16
13105cc214737
146ca27327bc
153aa71eebc0
hex213c7e4b42

142748830530 has 48 divisors (see below), whose sum is σ = 371183679360. Its totient is φ = 38062588704.

The previous prime is 142748830487. The next prime is 142748830547. The reversal of 142748830530 is 35038847241.

142748830530 is a `hidden beast` number, since 1 + 4 + 2 + 7 + 4 + 88 + 30 + 530 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 904279 + ... + 1050341.

It is an arithmetic number, because the mean of its divisors is an integer number (7732993320).

Almost surely, 2142748830530 is an apocalyptic number.

142748830530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142748830530 is an abundant number, since it is smaller than the sum of its proper divisors (228434848830).

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

142748830530 is a wasteful number, since it uses less digits than its factorization.

142748830530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156935 (or 156932 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 142748830530 in words is "one hundred forty-two billion, seven hundred forty-eight million, eight hundred thirty thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 10859 21718 32577 54295 65154 97731 108590 146063 162885 195462 292126 325770 438189 488655 730315 876378 977310 1314567 1460630 2190945 2629134 4381890 6572835 13145670 1586098117 3172196234 4758294351 7930490585 9516588702 14274883053 15860981170 23791471755 28549766106 47582943510 71374415265 142748830530