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180268042 = 290134021
BaseRepresentation
bin10101011111010…
…10110000001010
3110120012120021011
422233222300022
5332122034132
625515434134
74316152543
oct1257526012
9416176234
10180268042
1192836059
125045594a
132b468ba6
1419d274ca
1510c5cb47
hexabeac0a

180268042 has 4 divisors (see below), whose sum is σ = 270402066. Its totient is φ = 90134020.

The previous prime is 180268027. The next prime is 180268063. The reversal of 180268042 is 240862081.

180268042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240862081 = 298305589.

It can be written as a sum of positive squares in only one way, i.e., 170589721 + 9678321 = 13061^2 + 3111^2 .

It is a junction number, because it is equal to n+sod(n) for n = 180267995 and 180268013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45067009 + ... + 45067012.

Almost surely, 2180268042 is an apocalyptic number.

180268042 is a deficient number, since it is larger than the sum of its proper divisors (90134024).

180268042 is an equidigital number, since it uses as much as digits as its factorization.

180268042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90134023.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 180268042 is about 13426.3934844768. The cubic root of 180268042 is about 564.9017418605.

The spelling of 180268042 in words is "one hundred eighty million, two hundred sixty-eight thousand, forty-two".

Divisors: 1 2 90134021 180268042