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11910012 = 2231735737
BaseRepresentation
bin101101011011…
…101101111100
3211102002110120
4231123231330
511022110022
61103134540
7203143032
oct55335574
924362416
1011910012
1167a5194
123ba4450
13261005a
141820552
1510a3d5c
hexb5bb7c

11910012 has 24 divisors (see below), whose sum is σ = 27955536. Its totient is φ = 3946368.

The previous prime is 11909999. The next prime is 11910043. The reversal of 11910012 is 21001911.

It is a junction number, because it is equal to n+sod(n) for n = 11909973 and 11910000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793 + ... + 4944.

It is an arithmetic number, because the mean of its divisors is an integer number (1164814).

Almost surely, 211910012 is an apocalyptic number.

11910012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11910012 is an abundant number, since it is smaller than the sum of its proper divisors (16045524).

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

11910012 is a wasteful number, since it uses less digits than its factorization.

11910012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5917 (or 5915 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 15.

The square root of 11910012 is about 3451.0885239298. The cubic root of 11910012 is about 228.3691312028.

Adding to 11910012 its reverse (21001911), we get a palindrome (32911923).

The spelling of 11910012 in words is "eleven million, nine hundred ten thousand, twelve".

Divisors: 1 2 3 4 6 12 173 346 519 692 1038 2076 5737 11474 17211 22948 34422 68844 992501 1985002 2977503 3970004 5955006 11910012