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1244893 = 131743131
BaseRepresentation
bin100101111111011011101
32100020200011
410233323131
5304314033
642403221
713403266
oct4577335
92306604
101244893
11780341
12500511
13347830
1424596d
15198ccd
hex12fedd

1244893 has 16 divisors (see below), whose sum is σ = 1463616. Its totient is φ = 1048320.

The previous prime is 1244879. The next prime is 1244909. The reversal of 1244893 is 3984421.

It is not a de Polignac number, because 1244893 - 29 = 1244381 is a prime.

It is a d-powerful number, because it can be written as 1 + 211 + 47 + 410 + 8 + 93 + 311 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244813) 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, 9438 + ... + 9568.

It is an arithmetic number, because the mean of its divisors is an integer number (91476).

21244893 is an apocalyptic number.

1244893 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1244893 is a deficient number, since it is larger than the sum of its proper divisors (218723).

1244893 is a wasteful number, since it uses less digits than its factorization.

1244893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204.

The product of its digits is 6912, while the sum is 31.

The square root of 1244893 is about 1115.7477313443. The cubic root of 1244893 is about 107.5748316179.

The spelling of 1244893 in words is "one million, two hundred forty-four thousand, eight hundred ninety-three".

Divisors: 1 13 17 43 131 221 559 731 1703 2227 5633 9503 28951 73229 95761 1244893