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2944431 = 367577
BaseRepresentation
bin1011001110110110101111
312112121000000
423032312233
51223210211
6143035343
734012230
oct13166657
95477000
102944431
111731216
12b9bb53
137c1289
14569087
153d2656
hex2cedaf

2944431 has 28 divisors (see below), whose sum is σ = 5054032. Its totient is φ = 1679616.

The previous prime is 2944429. The next prime is 2944433. The reversal of 2944431 is 1344492.

It is an interprime number because it is at equal distance from previous prime (2944429) and next prime (2944433).

It is not a de Polignac number, because 2944431 - 21 = 2944429 is a prime.

It is a super-2 number, since 2×29444312 = 17339347827522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2944395 and 2944404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2944433) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 4815 + ... + 5391.

22944431 is an apocalyptic number.

2944431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2944431 is a deficient number, since it is larger than the sum of its proper divisors (2109601).

2944431 is an frugal number, since it uses more digits than its factorization.

2944431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602 (or 587 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 2944431 is about 1715.9344393070. The cubic root of 2944431 is about 143.3289085828.

It can be divided in two parts, 2944 and 431, that added together give a cube (3375 = 153).

The spelling of 2944431 in words is "two million, nine hundred forty-four thousand, four hundred thirty-one".

Divisors: 1 3 7 9 21 27 63 81 189 243 567 577 729 1701 1731 4039 5103 5193 12117 15579 36351 46737 109053 140211 327159 420633 981477 2944431