Search a number
-
+
142572520 = 2354382891
BaseRepresentation
bin10000111111101…
…11101111101000
3100221021102201201
420133313233220
5242444310040
622051453544
73350563216
oct1037675750
9327242651
10142572520
1173529932
123b8b72b4
13236cb24c
1414d13cb6
15c7b3a9a
hex87f7be8

142572520 has 32 divisors (see below), whose sum is σ = 328252320. Its totient is φ = 55702080.

The previous prime is 142572517. The next prime is 142572541. The reversal of 142572520 is 25275241.

142572520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 39726 + ... + 43165.

It is an arithmetic number, because the mean of its divisors is an integer number (10257885).

Almost surely, 2142572520 is an apocalyptic number.

142572520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142572520 is an abundant number, since it is smaller than the sum of its proper divisors (185679800).

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

142572520 is a wasteful number, since it uses less digits than its factorization.

142572520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82945 (or 82941 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 142572520 is about 11940.3735284957. The cubic root of 142572520 is about 522.4105537385.

The spelling of 142572520 in words is "one hundred forty-two million, five hundred seventy-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 215 344 430 860 1720 82891 165782 331564 414455 663128 828910 1657820 3315640 3564313 7128626 14257252 17821565 28514504 35643130 71286260 142572520