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142323851 = 1929436007
BaseRepresentation
bin10000111101110…
…11000010001011
3100220210210121202
420132323002023
5242413330401
622042254415
73345506225
oct1036730213
9326723552
10142323851
117337a01a
123b7b740b
1323641cc7
1414c8b415
15c76506b
hex87bb08b

142323851 has 16 divisors (see below), whose sum is σ = 158611200. Its totient is φ = 127135008.

The previous prime is 142323829. The next prime is 142323877. The reversal of 142323851 is 158323241.

It is a happy number.

142323851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 142323851 - 26 = 142323787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142323451) 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, 20690 + ... + 26696.

It is an arithmetic number, because the mean of its divisors is an integer number (9913200).

Almost surely, 2142323851 is an apocalyptic number.

142323851 is a deficient number, since it is larger than the sum of its proper divisors (16287349).

142323851 is a wasteful number, since it uses less digits than its factorization.

142323851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6098.

The product of its digits is 5760, while the sum is 29.

The square root of 142323851 is about 11929.9560351244. The cubic root of 142323851 is about 522.1066548068.

The spelling of 142323851 in words is "one hundred forty-two million, three hundred twenty-three thousand, eight hundred fifty-one".

Divisors: 1 19 29 43 551 817 1247 6007 23693 114133 174203 258301 3309857 4907719 7490729 142323851