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142041280 = 265443879
BaseRepresentation
bin10000111011101…
…10000011000000
3100220021110000011
420131312003000
5242330310110
622032234304
73343221343
oct1035660300
9326243004
10142041280
11731a6797
123b69b994
13235734c4
1414c1645a
15c70b48a
hex87760c0

142041280 has 28 divisors (see below), whose sum is σ = 338236560. Its totient is φ = 56816384.

The previous prime is 142041259. The next prime is 142041281. The reversal of 142041280 is 82140241.

It is not an unprimeable number, because it can be changed into a prime (142041281) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 221620 + ... + 222259.

Almost surely, 2142041280 is an apocalyptic number.

142041280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142041280 is an abundant number, since it is smaller than the sum of its proper divisors (196195280).

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

142041280 is an equidigital number, since it uses as much as digits as its factorization.

142041280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443896 (or 443886 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 142041280 is about 11918.1072322748. The cubic root of 142041280 is about 521.7608941968.

The spelling of 142041280 in words is "one hundred forty-two million, forty-one thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 443879 887758 1775516 2219395 3551032 4438790 7102064 8877580 14204128 17755160 28408256 35510320 71020640 142041280