Search a number
-
+
3132949 = 22913681
BaseRepresentation
bin1011111100111000010101
312220011121011
423330320111
51300223244
6151052221
735425651
oct13747025
95804534
103132949
11184a916
121071071
13859021
145b7a61
1541d434
hex2fce15

3132949 has 4 divisors (see below), whose sum is σ = 3146860. Its totient is φ = 3119040.

The previous prime is 3132923. The next prime is 3132971. The reversal of 3132949 is 9492313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2924100 + 208849 = 1710^2 + 457^2 .

It is a cyclic number.

It is not a de Polignac number, because 3132949 - 25 = 3132917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3132949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3132979) 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, 6612 + ... + 7069.

It is an arithmetic number, because the mean of its divisors is an integer number (786715).

Almost surely, 23132949 is an apocalyptic number.

It is an amenable number.

3132949 is a deficient number, since it is larger than the sum of its proper divisors (13911).

3132949 is a wasteful number, since it uses less digits than its factorization.

3132949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13910.

The product of its digits is 5832, while the sum is 31.

The square root of 3132949 is about 1770.0138417538. The cubic root of 3132949 is about 146.3247447091.

It can be divided in two parts, 31329 and 49, that multiplied together give a square (1535121 = 12392).

The spelling of 3132949 in words is "three million, one hundred thirty-two thousand, nine hundred forty-nine".

Divisors: 1 229 13681 3132949