Search a number
-
+
3021431 = 7653661
BaseRepresentation
bin1011100001101001110111
312200111121212
423201221313
51233141211
6144432035
734452560
oct13415167
95614555
103021431
111784056
12101861b
1381a33a
14589167
153ea38b
hex2e1a77

3021431 has 8 divisors (see below), whose sum is σ = 3463584. Its totient is φ = 2581920.

The previous prime is 3021419. The next prime is 3021439. The reversal of 3021431 is 1341203.

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

It is a cyclic number.

It is not a de Polignac number, because 3021431 - 26 = 3021367 is a prime.

It is a super-2 number, since 2×30214312 = 18258090575522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3021439) 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 7 ways as a sum of consecutive naturals, for example, 4241 + ... + 4901.

It is an arithmetic number, because the mean of its divisors is an integer number (432948).

Almost surely, 23021431 is an apocalyptic number.

3021431 is a deficient number, since it is larger than the sum of its proper divisors (442153).

3021431 is an equidigital number, since it uses as much as digits as its factorization.

3021431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3021431 is about 1738.2263949210. The cubic root of 3021431 is about 144.5675741465.

Adding to 3021431 its reverse (1341203), we get a palindrome (4362634).

The spelling of 3021431 in words is "three million, twenty-one thousand, four hundred thirty-one".

Divisors: 1 7 653 661 4571 4627 431633 3021431