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312201244 = 22110970379
BaseRepresentation
bin10010100110111…
…101000000011100
3210202110110121001
4102212331000130
51114410414434
650551320044
710510444465
oct2246750034
9722413531
10312201244
11150258463
1288680024
134c8b0584
142d66bd6c
151c61e114
hex129bd01c

312201244 has 12 divisors (see below), whose sum is σ = 546852600. Its totient is φ = 155957648.

The previous prime is 312201223. The next prime is 312201247. The reversal of 312201244 is 442102213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312201247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30754 + ... + 39625.

It is an arithmetic number, because the mean of its divisors is an integer number (45571050).

Almost surely, 2312201244 is an apocalyptic number.

It is an amenable number.

312201244 is a deficient number, since it is larger than the sum of its proper divisors (234651356).

312201244 is a wasteful number, since it uses less digits than its factorization.

312201244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71492 (or 71490 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 312201244 is about 17669.2174133435. The cubic root of 312201244 is about 678.3880822516.

Adding to 312201244 its reverse (442102213), we get a palindrome (754303457).

It can be divided in two parts, 312201 and 244, that added together give a triangular number (312445 = T790).

The spelling of 312201244 in words is "three hundred twelve million, two hundred one thousand, two hundred forty-four".

Divisors: 1 2 4 1109 2218 4436 70379 140758 281516 78050311 156100622 312201244