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142102195 = 5181157019
BaseRepresentation
bin10000111100001…
…00111010110011
3100220101112120021
420132010322303
5242334232240
622033424311
73343564054
oct1036047263
9326345507
10142102195
1173238534
123b70b097
1323595151
1414c3072b
15c71e54a
hex8784eb3

142102195 has 8 divisors (see below), whose sum is σ = 171465840. Its totient is φ = 113052960.

The previous prime is 142102157. The next prime is 142102231. The reversal of 142102195 is 591201241.

It is a happy number.

142102195 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142102195 - 213 = 142094003 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77605 + ... + 79414.

It is an arithmetic number, because the mean of its divisors is an integer number (21433230).

Almost surely, 2142102195 is an apocalyptic number.

142102195 is a deficient number, since it is larger than the sum of its proper divisors (29363645).

142102195 is a wasteful number, since it uses less digits than its factorization.

142102195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157205.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 142102195 is about 11920.6625235345. The cubic root of 142102195 is about 521.8354699880.

The spelling of 142102195 in words is "one hundred forty-two million, one hundred two thousand, one hundred ninety-five".

Divisors: 1 5 181 905 157019 785095 28420439 142102195