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142882740 = 2232571113261
BaseRepresentation
bin10001000010000…
…11011110110100
3100221212012021100
420201003132310
5243034221430
622102250100
73353324520
oct1041033664
9327765240
10142882740
1173720a10
123ba26930
13237a9500
1414d94d80
15c825960
hex88437b4

142882740 has 432 divisors, whose sum is σ = 594711936. Its totient is φ = 26956800.

The previous prime is 142882723. The next prime is 142882763. The reversal of 142882740 is 47288241.

142882740 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 142882695 and 142882704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2342310 + ... + 2342370.

It is an arithmetic number, because the mean of its divisors is an integer number (1376648).

Almost surely, 2142882740 is an apocalyptic number.

142882740 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 142882740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297355968).

142882740 is an abundant number, since it is smaller than the sum of its proper divisors (451829196).

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

142882740 is a wasteful number, since it uses less digits than its factorization.

142882740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 142882740 is about 11953.3568506926. The cubic root of 142882740 is about 522.7891793004.

The spelling of 142882740 in words is "one hundred forty-two million, eight hundred eighty-two thousand, seven hundred forty".