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244401287 = 13411373347
BaseRepresentation
bin11101001000101…
…00010010000111
3122000212212112112
432210110102013
51000031320122
640130211235
76025243124
oct1644242207
9560785475
10244401287
11115a5a339
1269a23b1b
133b832260
142465d74b
15166ca2e2
hexe914487

244401287 has 16 divisors (see below), whose sum is σ = 271670112. Its totient is φ = 218426880.

The previous prime is 244401281. The next prime is 244401301. The reversal of 244401287 is 782104442.

It is a cyclic number.

It is not a de Polignac number, because 244401287 - 24 = 244401271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244401281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71348 + ... + 74694.

It is an arithmetic number, because the mean of its divisors is an integer number (16979382).

Almost surely, 2244401287 is an apocalyptic number.

244401287 is a deficient number, since it is larger than the sum of its proper divisors (27268825).

244401287 is a wasteful number, since it uses less digits than its factorization.

244401287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538.

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 244401287 is about 15633.3389587765. The cubic root of 244401287 is about 625.2223524590. Note that the first 3 decimals are identical.

The spelling of 244401287 in words is "two hundred forty-four million, four hundred one thousand, two hundred eighty-seven".

Divisors: 1 13 41 137 533 1781 3347 5617 43511 73021 137227 458539 1783951 5961007 18800099 244401287