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3129441 = 37149021
BaseRepresentation
bin1011111100000001100001
312212222210020
423330001201
51300120231
6151024053
735412510
oct13740141
95788706
103129441
111848217
12106b029
13857553
145b6677
1541c396
hex2fc061

3129441 has 8 divisors (see below), whose sum is σ = 4768704. Its totient is φ = 1788240.

The previous prime is 3129439. The next prime is 3129443. The reversal of 3129441 is 1449213.

It is an interprime number because it is at equal distance from previous prime (3129439) and next prime (3129443).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3129441 - 21 = 3129439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3129443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74490 + ... + 74531.

It is an arithmetic number, because the mean of its divisors is an integer number (596088).

Almost surely, 23129441 is an apocalyptic number.

It is an amenable number.

3129441 is a deficient number, since it is larger than the sum of its proper divisors (1639263).

3129441 is a wasteful number, since it uses less digits than its factorization.

3129441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149031.

The product of its digits is 864, while the sum is 24.

The square root of 3129441 is about 1769.0226115005. The cubic root of 3129441 is about 146.2701104641.

It can be divided in two parts, 3129 and 441, that added together give a triangular number (3570 = T84).

The spelling of 3129441 in words is "three million, one hundred twenty-nine thousand, four hundred forty-one".

Divisors: 1 3 7 21 149021 447063 1043147 3129441