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142165030 = 25719139769
BaseRepresentation
bin10000111100101…
…00010000100110
3100220111201202111
420132110100212
5242343240110
622035031234
73344245210
oct1036242046
9326451674
10142165030
1173280767
123b73b51a
13235b7927
1414c495b0
15c732e8a
hex8794426

142165030 has 64 divisors (see below), whose sum is σ = 310464000. Its totient is φ = 45785088.

The previous prime is 142165019. The next prime is 142165057. The reversal of 142165030 is 30561241.

It is a junction number, because it is equal to n+sod(n) for n = 142164992 and 142165010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184486 + ... + 185254.

It is an arithmetic number, because the mean of its divisors is an integer number (4851000).

Almost surely, 2142165030 is an apocalyptic number.

142165030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142165030 is an abundant number, since it is smaller than the sum of its proper divisors (168298970).

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

142165030 is a wasteful number, since it uses less digits than its factorization.

142165030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 142165030 is about 11923.2977820735. The cubic root of 142165030 is about 521.9123740311.

The spelling of 142165030 in words is "one hundred forty-two million, one hundred sixty-five thousand, thirty".

Divisors: 1 2 5 7 10 14 19 35 38 70 95 133 139 190 266 278 665 695 769 973 1330 1390 1538 1946 2641 3845 4865 5282 5383 7690 9730 10766 13205 14611 18487 26410 26915 29222 36974 53830 73055 92435 102277 106891 146110 184870 204554 213782 511385 534455 748237 1022770 1068910 1496474 2030929 3741185 4061858 7482370 10154645 14216503 20309290 28433006 71082515 142165030