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142987636320 = 2535797515021
BaseRepresentation
bin1000010100101010111…
…0100010111001100000
3111200002001110112022020
42011022232202321200
54320314313330240
6145404305141440
713221236566164
oct2051256427140
9450061415266
10142987636320
115570587a571
122386632a880
1310639837b39
146cc6336ca4
153abd1720d0
hex214aba2e60

142987636320 has 192 divisors, whose sum is σ = 456810762240. Its totient is φ = 37589760000.

The previous prime is 142987636289. The next prime is 142987636373. The reversal of 142987636320 is 23636789241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28475410 + ... + 28480430.

It is an arithmetic number, because the mean of its divisors is an integer number (2379222720).

Almost surely, 2142987636320 is an apocalyptic number.

142987636320 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 142987636320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228405381120).

142987636320 is an abundant number, since it is smaller than the sum of its proper divisors (313823125920).

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

142987636320 is a wasteful number, since it uses less digits than its factorization.

142987636320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5869 (or 5861 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 142987636320 in words is "one hundred forty-two billion, nine hundred eighty-seven million, six hundred thirty-six thousand, three hundred twenty".