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142725392280 = 23345734911229
BaseRepresentation
bin1000010011101100011…
…0001010011110011000
3111122101210000011010000
42010323012022132120
54314300200023110
6145322300253000
713211603550252
oct2047306123630
9448353004100
10142725392280
1155590843759
12237b2541160
13105c73c9353
146c9d590cd2
153aa51201c0
hex213b18a798

142725392280 has 320 divisors, whose sum is σ = 487674237600. Its totient is φ = 37431797760.

The previous prime is 142725392263. The next prime is 142725392281. The reversal of 142725392280 is 82293527241.

142725392280 is a `hidden beast` number, since 1 + 42 + 72 + 539 + 2 + 2 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142725392281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 116130706 + ... + 116131934.

Almost surely, 2142725392280 is an apocalyptic number.

142725392280 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 142725392280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243837118800).

142725392280 is an abundant number, since it is smaller than the sum of its proper divisors (344948845320).

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

142725392280 is a wasteful number, since it uses less digits than its factorization.

142725392280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816 (or 1803 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 142725392280 in words is "one hundred forty-two billion, seven hundred twenty-five million, three hundred ninety-two thousand, two hundred eighty".