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11031949 = 17961631
BaseRepresentation
bin101010000101…
…010110001101
3202202110222201
4222011112031
510311010244
61032241501
7162525055
oct52052615
922673881
1011031949
116255515
123840291
1323934a6
141672565
15e7dad4
hexa8558d

11031949 has 4 divisors (see below), whose sum is σ = 11093760. Its totient is φ = 10970140.

The previous prime is 11031947. The next prime is 11031961. The reversal of 11031949 is 94913011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94913011 = 611555951.

It is a cyclic number.

It is not a de Polignac number, because 11031949 - 21 = 11031947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30637 + ... + 30994.

It is an arithmetic number, because the mean of its divisors is an integer number (2773440).

Almost surely, 211031949 is an apocalyptic number.

It is an amenable number.

11031949 is a deficient number, since it is larger than the sum of its proper divisors (61811).

11031949 is an equidigital number, since it uses as much as digits as its factorization.

11031949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61810.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 11031949 is about 3321.4377910778. The cubic root of 11031949 is about 222.6131159046.

The spelling of 11031949 in words is "eleven million, thirty-one thousand, nine hundred forty-nine".

Divisors: 1 179 61631 11031949