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11925940 = 2251345869
BaseRepresentation
bin101101011111…
…100110110100
3211102220022111
4231133212310
511023112230
61103340404
7203240335
oct55374664
924386274
1011925940
116806154
123bb1704
132617390
14182628c
1510a892a
hexb5f9b4

11925940 has 24 divisors (see below), whose sum is σ = 26971560. Its totient is φ = 4403328.

The previous prime is 11925913. The next prime is 11925961. The reversal of 11925940 is 4952911.

It can be written as a sum of positive squares in 4 ways, for example, as 595984 + 11329956 = 772^2 + 3366^2 .

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, 22675 + ... + 23194.

It is an arithmetic number, because the mean of its divisors is an integer number (1123815).

Almost surely, 211925940 is an apocalyptic number.

11925940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11925940 is an abundant number, since it is smaller than the sum of its proper divisors (15045620).

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

11925940 is a wasteful number, since it uses less digits than its factorization.

11925940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45891 (or 45889 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 11925940 is about 3453.3954305871. The cubic root of 11925940 is about 228.4708899357.

The spelling of 11925940 in words is "eleven million, nine hundred twenty-five thousand, nine hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 45869 91738 183476 229345 458690 596297 917380 1192594 2385188 2981485 5962970 11925940