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244990027 = 1105922153
BaseRepresentation
bin11101001101001…
…00000001001011
3122001222210010201
432212210001023
51000204140102
640150553031
76033244432
oct1646440113
9561883121
10244990027
111163216a7
126a068777
133b9aa219
1424774119
1516794987
hexe9a404b

244990027 has 4 divisors (see below), whose sum is σ = 245023240. Its totient is φ = 244956816.

The previous prime is 244990003. The next prime is 244990037. The reversal of 244990027 is 720099442.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 720099442 = 2360049721.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-244990027 is a prime.

It is a super-2 number, since 2×2449900272 = 120040226658921458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244990037) 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, 18 + ... + 22135.

It is an arithmetic number, because the mean of its divisors is an integer number (61255810).

Almost surely, 2244990027 is an apocalyptic number.

244990027 is a deficient number, since it is larger than the sum of its proper divisors (33213).

244990027 is a wasteful number, since it uses less digits than its factorization.

244990027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33212.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 244990027 is about 15652.1572634573. The cubic root of 244990027 is about 625.7239840715.

The spelling of 244990027 in words is "two hundred forty-four million, nine hundred ninety thousand, twenty-seven".

Divisors: 1 11059 22153 244990027