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142455132 = 22336719687
BaseRepresentation
bin10000111110110…
…11000101011100
3100221001110201000
420133123011130
5242432031012
622045150300
73346564041
oct1037330534
9327043630
10142455132
1173459716
123b85b390
13236899a1
1414cc31c8
15c78dddc
hex87db15c

142455132 has 48 divisors (see below), whose sum is σ = 374859520. Its totient is φ = 46773936.

The previous prime is 142455127. The next prime is 142455139. The reversal of 142455132 is 231554241.

142455132 is a `hidden beast` number, since 142 + 4 + 5 + 513 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 142455096 and 142455105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142455139) 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, 2608 + ... + 17079.

Almost surely, 2142455132 is an apocalyptic number.

142455132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142455132 is an abundant number, since it is smaller than the sum of its proper divisors (232404388).

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

142455132 is a wasteful number, since it uses less digits than its factorization.

142455132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19767 (or 19759 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 142455132 is about 11935.4569246426. The cubic root of 142455132 is about 522.2671376756.

The spelling of 142455132 in words is "one hundred forty-two million, four hundred fifty-five thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 67 108 134 201 268 402 603 804 1206 1809 2412 3618 7236 19687 39374 59061 78748 118122 177183 236244 354366 531549 708732 1063098 1319029 2126196 2638058 3957087 5276116 7914174 11871261 15828348 23742522 35613783 47485044 71227566 142455132