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142550142 = 2373394051
BaseRepresentation
bin10000111111100…
…10010001111110
3100221020022000220
420133302101332
5242443101032
622051202210
73350441040
oct1037622176
9327208026
10142550142
1173514039
123b8a6366
13236c0cc7
1414d09a90
15c7ac12c
hex87f247e

142550142 has 16 divisors (see below), whose sum is σ = 325828992. Its totient is φ = 40728600.

The previous prime is 142550137. The next prime is 142550189. The reversal of 142550142 is 241055241.

It is a congruent number.

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, 1696984 + ... + 1697067.

It is an arithmetic number, because the mean of its divisors is an integer number (20364312).

Almost surely, 2142550142 is an apocalyptic number.

142550142 is an abundant number, since it is smaller than the sum of its proper divisors (183278850).

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

142550142 is a wasteful number, since it uses less digits than its factorization.

142550142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394063.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 142550142 is about 11939.4364188600. The cubic root of 142550142 is about 522.3832200114.

The spelling of 142550142 in words is "one hundred forty-two million, five hundred fifty thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 3394051 6788102 10182153 20364306 23758357 47516714 71275071 142550142