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142309080 = 23325395303
BaseRepresentation
bin10000111101101…
…11011011011000
3100220210001100200
420132313123120
5242412342310
622042102200
73345415164
oct1036673330
9326701320
10142309080
1173369a11
123b7aa960
1323638374
1414c85ca4
15c7609c0
hex87b76d8

142309080 has 48 divisors (see below), whose sum is σ = 462505680. Its totient is φ = 37948992.

The previous prime is 142309049. The next prime is 142309093. The reversal of 142309080 is 80903241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197292 + ... + 198011.

It is an arithmetic number, because the mean of its divisors is an integer number (9635535).

Almost surely, 2142309080 is an apocalyptic number.

142309080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142309080 is an abundant number, since it is smaller than the sum of its proper divisors (320196600).

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

142309080 is a wasteful number, since it uses less digits than its factorization.

142309080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395320 (or 395313 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 142309080 is about 11929.3369472071. The cubic root of 142309080 is about 522.0885920011.

The spelling of 142309080 in words is "one hundred forty-two million, three hundred nine thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 395303 790606 1185909 1581212 1976515 2371818 3162424 3557727 3953030 4743636 5929545 7115454 7906060 9487272 11859090 14230908 15812120 17788635 23718180 28461816 35577270 47436360 71154540 142309080