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20382022242 = 2323730603637
BaseRepresentation
bin10010111110110111…
…001111101001100010
31221121110101000020200
4102332313033221202
5313220244202432
613210253250030
71321041221241
oct227667175142
957543330220
1020382022242
11870a135a8a
123b49a93916
131bca8933ba
14db4d2a958
157e457ca7c
hex4bedcfa62

20382022242 has 24 divisors (see below), whose sum is σ = 45354591516. Its totient is φ = 6610385376.

The previous prime is 20382022189. The next prime is 20382022249. The reversal of 20382022242 is 24222028302.

20382022242 is a `hidden beast` number, since 20 + 382 + 0 + 22 + 242 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17284097961 + 3097924281 = 131469^2 + 55659^2 .

It is not an unprimeable number, because it can be changed into a prime (20382022249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15301153 + ... + 15302484.

Almost surely, 220382022242 is an apocalyptic number.

20382022242 is an abundant number, since it is smaller than the sum of its proper divisors (24972569274).

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

20382022242 is a wasteful number, since it uses less digits than its factorization.

20382022242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30603682 (or 30603679 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The spelling of 20382022242 in words is "twenty billion, three hundred eighty-two million, twenty-two thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 37 74 111 222 333 666 30603637 61207274 91810911 183621822 275432733 550865466 1132334569 2264669138 3397003707 6794007414 10191011121 20382022242