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142650380 = 22510170619
BaseRepresentation
bin10001000000010…
…10110000001100
3100221102101112102
420200022300030
5243004303010
622053254232
73351336215
oct1040126014
9327371472
10142650380
1173582384
123b934378
1323727812
1414d3440c
15c7cbba5
hex880ac0c

142650380 has 24 divisors (see below), whose sum is σ = 302536080. Its totient is φ = 56494400.

The previous prime is 142650373. The next prime is 142650397. The reversal of 142650380 is 83056241.

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, 33290 + ... + 37329.

It is an arithmetic number, because the mean of its divisors is an integer number (12605670).

Almost surely, 2142650380 is an apocalyptic number.

142650380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142650380 is an abundant number, since it is smaller than the sum of its proper divisors (159885700).

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

142650380 is a wasteful number, since it uses less digits than its factorization.

142650380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70729 (or 70727 counting only the distinct ones).

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

The square root of 142650380 is about 11943.6334505041. The cubic root of 142650380 is about 522.5056339678.

The spelling of 142650380 in words is "one hundred forty-two million, six hundred fifty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 70619 141238 282476 353095 706190 1412380 7132519 14265038 28530076 35662595 71325190 142650380