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142318525440 = 21035713293511
BaseRepresentation
bin1000010010001011011…
…0000101110000000000
3111121100102102011201210
42010202312011300000
54312432020303230
6145214043530120
713165533335460
oct2044266056000
9447312364653
10142318525440
11553a2108673
12236ba229940
1310561022340
146c6151dba0
153a7e551eb0
hex2122d85c00

142318525440 has 704 divisors, whose sum is σ = 579726120960. Its totient is φ = 28983951360.

The previous prime is 142318525429. The next prime is 142318525477. The reversal of 142318525440 is 44525813241.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40533285 + ... + 40536795.

Almost surely, 2142318525440 is an apocalyptic number.

142318525440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142318525440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289863060480).

142318525440 is an abundant number, since it is smaller than the sum of its proper divisors (437407595520).

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

142318525440 is a wasteful number, since it uses less digits than its factorization.

142318525440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588 (or 3570 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 39.

The spelling of 142318525440 in words is "one hundred forty-two billion, three hundred eighteen million, five hundred twenty-five thousand, four hundred forty".