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11211168949 = 791091301959
BaseRepresentation
bin10100111000011110…
…01101110010110101
31001221022210101120121
422130033031302311
5140430024401244
65052250131541
7544552235521
oct123417156265
931838711517
1011211168949
11483345a192
12220a720bb1
1310988c25a6
14784d5cd81
154593a2c84
hex29c3cdcb5

11211168949 has 8 divisors (see below), whose sum is σ = 11457248000. Its totient is φ = 10967694192.

The previous prime is 11211168911. The next prime is 11211168971. The reversal of 11211168949 is 94986111211.

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 11211168949 - 219 = 11210644661 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 (11211168989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642369 + ... + 659590.

It is an arithmetic number, because the mean of its divisors is an integer number (1432156000).

Almost surely, 211211168949 is an apocalyptic number.

It is an amenable number.

11211168949 is a deficient number, since it is larger than the sum of its proper divisors (246079051).

11211168949 is a wasteful number, since it uses less digits than its factorization.

11211168949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302147.

The product of its digits is 31104, while the sum is 43.

The spelling of 11211168949 in words is "eleven billion, two hundred eleven million, one hundred sixty-eight thousand, nine hundred forty-nine".

Divisors: 1 79 109 8611 1301959 102854761 141913531 11211168949