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142082740 = 22519336809
BaseRepresentation
bin10000111100000…
…00001010110100
3100220100112212201
420132000022310
5242333121430
622033154244
73343453252
oct1036001264
9326315781
10142082740
1173224958
123b6bb984
1323589337
1414c275d2
15c7188ca
hex87802b4

142082740 has 24 divisors (see below), whose sum is σ = 299927880. Its totient is φ = 56537088.

The previous prime is 142082723. The next prime is 142082749. The reversal of 142082740 is 47280241.

142082740 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2039184 + 140043556 = 1428^2 + 11834^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142082699 and 142082708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142082749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14545 + ... + 22264.

It is an arithmetic number, because the mean of its divisors is an integer number (12496995).

Almost surely, 2142082740 is an apocalyptic number.

142082740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142082740 is an abundant number, since it is smaller than the sum of its proper divisors (157845140).

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

142082740 is a wasteful number, since it uses less digits than its factorization.

142082740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37011 (or 37009 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 142082740 is about 11919.8464755214. The cubic root of 142082740 is about 521.8116543286.

The spelling of 142082740 in words is "one hundred forty-two million, eighty-two thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 193 386 772 965 1930 3860 36809 73618 147236 184045 368090 736180 7104137 14208274 28416548 35520685 71041370 142082740