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2242987969 = 19931125433
BaseRepresentation
bin1000010110110001…
…0100011111000001
312210022120121001111
42011230110133001
514043201103334
61010323003321
7106404040345
oct20554243701
95708517044
102242987969
11a51121072
12527209541
13299903221
14173c6b625
15d1dae064
hex85b147c1

2242987969 has 4 divisors (see below), whose sum is σ = 2244115396. Its totient is φ = 2241860544.

The previous prime is 2242987937. The next prime is 2242987997. The reversal of 2242987969 is 9697892422.

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

It can be written as a sum of positive squares in 2 ways, for example, as 955613569 + 1287374400 = 30913^2 + 35880^2 .

It is a cyclic number.

It is not a de Polignac number, because 2242987969 - 25 = 2242987937 is a prime.

It is a super-2 number, since 2×22429879692 = 10061990058157489922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2242987169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560724 + ... + 564709.

It is an arithmetic number, because the mean of its divisors is an integer number (561028849).

Almost surely, 22242987969 is an apocalyptic number.

It is an amenable number.

2242987969 is a deficient number, since it is larger than the sum of its proper divisors (1127427).

2242987969 is a wasteful number, since it uses less digits than its factorization.

2242987969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127426.

The product of its digits is 7838208, while the sum is 58.

The square root of 2242987969 is about 47360.1939290793. The cubic root of 2242987969 is about 1309.0080420590.

The spelling of 2242987969 in words is "two billion, two hundred forty-two million, nine hundred eighty-seven thousand, nine hundred sixty-nine".

Divisors: 1 1993 1125433 2242987969