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182020042 = 291010021
BaseRepresentation
bin10101101100101…
…10011111001010
3110200111120120001
422312112133022
5333044120132
630021153214
74340100451
oct1266263712
9420446501
10182020042
1193822396
1250b5b80a
132b930489
141a261b98
1510ea6ce7
hexad967ca

182020042 has 4 divisors (see below), whose sum is σ = 273030066. Its totient is φ = 91010020.

The previous prime is 182020031. The next prime is 182020051. The reversal of 182020042 is 240020281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 178783641 + 3236401 = 13371^2 + 1799^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45505009 + ... + 45505012.

Almost surely, 2182020042 is an apocalyptic number.

182020042 is a deficient number, since it is larger than the sum of its proper divisors (91010024).

182020042 is an equidigital number, since it uses as much as digits as its factorization.

182020042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91010023.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 182020042 is about 13491.4803487238. The cubic root of 182020042 is about 566.7259120678.

The spelling of 182020042 in words is "one hundred eighty-two million, twenty thousand, forty-two".

Divisors: 1 2 91010021 182020042