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11212020192 = 253495723561
BaseRepresentation
bin10100111000100100…
…11101100111100000
31001221101101122021010
422130102131213200
5140430234121232
65052320300520
7544562412342
oct123422354740
931841348233
1011212020192
11483399079a
12220aa71740
131098b2cb99
14785101292
154594c00cc
hex29c49d9e0

11212020192 has 48 divisors (see below), whose sum is σ = 29438739792. Its totient is φ = 3736427520.

The previous prime is 11212020191. The next prime is 11212020229. The reversal of 11212020192 is 29102021211.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212020191) 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, 464092 + ... + 487652.

It is an arithmetic number, because the mean of its divisors is an integer number (613307079).

Almost surely, 211212020192 is an apocalyptic number.

11212020192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11212020192 is an abundant number, since it is smaller than the sum of its proper divisors (18226719600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11212020192 is a wasteful number, since it uses less digits than its factorization.

11212020192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28531 (or 28523 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 11212020192 in words is "eleven billion, two hundred twelve million, twenty thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 4957 9914 14871 19828 23561 29742 39656 47122 59484 70683 79312 94244 118968 141366 158624 188488 237936 282732 376976 475872 565464 753952 1130928 2261856 116791877 233583754 350375631 467167508 700751262 934335016 1401502524 1868670032 2803005048 3737340064 5606010096 11212020192