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244160437 = 1993122509
BaseRepresentation
bin11101000110110…
…01011110110101
3122000102122011011
432203121132311
51000001113222
640121112221
76023221003
oct1643313665
9560378134
10244160437
11115905394
1269928671
133b779741
14245d9a73
151667dc77
hexe8d97b5

244160437 has 4 divisors (see below), whose sum is σ = 244284940. Its totient is φ = 244035936.

The previous prime is 244160429. The next prime is 244160597. The reversal of 244160437 is 734061442.

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 225420196 + 18740241 = 15014^2 + 4329^2 .

It is a cyclic number.

It is not a de Polignac number, because 244160437 - 23 = 244160429 is a prime.

It is a super-2 number, since 2×2441604372 = 119228637992061938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244160399 and 244160408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244160417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59262 + ... + 63247.

It is an arithmetic number, because the mean of its divisors is an integer number (61071235).

Almost surely, 2244160437 is an apocalyptic number.

It is an amenable number.

244160437 is a deficient number, since it is larger than the sum of its proper divisors (124503).

244160437 is a wasteful number, since it uses less digits than its factorization.

244160437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124502.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 244160437 is about 15625.6339711386. The cubic root of 244160437 is about 625.0169057827.

The spelling of 244160437 in words is "two hundred forty-four million, one hundred sixty thousand, four hundred thirty-seven".

Divisors: 1 1993 122509 244160437