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142441970 = 25118571511
BaseRepresentation
bin10000111110101…
…11110111110010
3100221000210122112
420133113313302
5242431120340
622045005322
73346510466
oct1037276762
9327023575
10142441970
117344a840
123b853842
13236839b8
1414cbc4a6
15c78a065
hex87d7df2

142441970 has 32 divisors (see below), whose sum is σ = 280215936. Its totient is φ = 51702400.

The previous prime is 142441961. The next prime is 142441973. The reversal of 142441970 is 79144241.

142441970 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142441973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93515 + ... + 95025.

It is an arithmetic number, because the mean of its divisors is an integer number (8756748).

Almost surely, 2142441970 is an apocalyptic number.

142441970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142441970 is a deficient number, since it is larger than the sum of its proper divisors (137773966).

142441970 is a wasteful number, since it uses less digits than its factorization.

142441970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 142441970 is about 11934.9055295800. The cubic root of 142441970 is about 522.2510523962.

The spelling of 142441970 in words is "one hundred forty-two million, four hundred forty-one thousand, nine hundred seventy".

Divisors: 1 2 5 10 11 22 55 110 857 1511 1714 3022 4285 7555 8570 9427 15110 16621 18854 33242 47135 83105 94270 166210 1294927 2589854 6474635 12949270 14244197 28488394 71220985 142441970