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4312990 = 251139209
BaseRepresentation
bin10000011100111110011110
322010010022101
4100130332132
52101003430
6232235314
751442213
oct20347636
98103271
104312990
112486460
12153bb3a
13b80186
14803b0a
155a2dca
hex41cf9e

4312990 has 16 divisors (see below), whose sum is σ = 8469360. Its totient is φ = 1568320.

The previous prime is 4312969. The next prime is 4313027. The reversal of 4312990 is 992134.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19495 + ... + 19714.

It is an arithmetic number, because the mean of its divisors is an integer number (529335).

Almost surely, 24312990 is an apocalyptic number.

4312990 is a deficient number, since it is larger than the sum of its proper divisors (4156370).

4312990 is a wasteful number, since it uses less digits than its factorization.

4312990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39227.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 4312990 is about 2076.7739405145. The cubic root of 4312990 is about 162.7769163986.

The spelling of 4312990 in words is "four million, three hundred twelve thousand, nine hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 39209 78418 196045 392090 431299 862598 2156495 4312990