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10918940 = 225545947
BaseRepresentation
bin101001101001…
…110000011100
3202112201222012
4221221300130
510243401230
61030010352
7161544434
oct51516034
922481865
1010918940
11618861a
1237a69b8
132353c16
1416432c4
15e5a395
hexa69c1c

10918940 has 12 divisors (see below), whose sum is σ = 22929816. Its totient is φ = 4367568.

The previous prime is 10918937. The next prime is 10918967. The reversal of 10918940 is 4981901.

It is a junction number, because it is equal to n+sod(n) for n = 10918897 and 10918906.

It is a congruent number.

It is an unprimeable number.

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, 272954 + ... + 272993.

It is an arithmetic number, because the mean of its divisors is an integer number (1910818).

Almost surely, 210918940 is an apocalyptic number.

10918940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10918940 is an abundant number, since it is smaller than the sum of its proper divisors (12010876).

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

10918940 is a wasteful number, since it uses less digits than its factorization.

10918940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545956 (or 545954 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 10918940 is about 3304.3819391832. The cubic root of 10918940 is about 221.8503712661.

The spelling of 10918940 in words is "ten million, nine hundred eighteen thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 545947 1091894 2183788 2729735 5459470 10918940