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4312247 = 234332
BaseRepresentation
bin10000011100110010110111
322010002021212
4100130302313
52100442442
6232232035
751440102
oct20346267
98102255
104312247
112485945
12153b61b
13b7ca34
14803739
155a2a82
hex41ccb7

4312247 has 6 divisors (see below), whose sum is σ = 4510152. Its totient is φ = 4115232.

The previous prime is 4312229. The next prime is 4312261. The reversal of 4312247 is 7422134.

It is not a de Polignac number, because 4312247 - 220 = 3263671 is a prime.

It is a super-3 number, since 3×43122473 (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a d-powerful number, because it can be written as 42 + 35 + 1 + 2 + 25 + 411 + 76 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4312267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9743 + ... + 10175.

It is an arithmetic number, because the mean of its divisors is an integer number (751692).

Almost surely, 24312247 is an apocalyptic number.

4312247 is a deficient number, since it is larger than the sum of its proper divisors (197905).

4312247 is an frugal number, since it uses more digits than its factorization.

4312247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889 (or 456 counting only the distinct ones).

The product of its digits is 1344, while the sum is 23.

The square root of 4312247 is about 2076.5950495944. The cubic root of 4312247 is about 162.7675686534.

Multiplying 4312247 by its sum of digits (23), we get a square (99181681 = 99592).

4312247 divided by its sum of digits (23) gives a square (187489 = 4332).

The spelling of 4312247 in words is "four million, three hundred twelve thousand, two hundred forty-seven".

Divisors: 1 23 433 9959 187489 4312247