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10648720 = 245133109
BaseRepresentation
bin101000100111…
…110010010000
3202001000022001
4220213302100
510211224340
61020123344
7156340555
oct50476220
922030261
1010648720
1160135a5
123696554
13228ac24
1415b2a2c
15e0529a
hexa27c90

10648720 has 20 divisors (see below), whose sum is σ = 24758460. Its totient is φ = 4259456.

The previous prime is 10648699. The next prime is 10648727. The reversal of 10648720 is 2784601.

It can be written as a sum of positive squares in 2 ways, for example, as 5702544 + 4946176 = 2388^2 + 2224^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×106487202 = 226790475276800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10648727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66475 + ... + 66634.

It is an arithmetic number, because the mean of its divisors is an integer number (1237923).

Almost surely, 210648720 is an apocalyptic number.

10648720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10648720 is an abundant number, since it is smaller than the sum of its proper divisors (14109740).

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

10648720 is a wasteful number, since it uses less digits than its factorization.

10648720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133122 (or 133116 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 10648720 is about 3263.2376560710. The cubic root of 10648720 is about 220.0049585659.

The spelling of 10648720 in words is "ten million, six hundred forty-eight thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 133109 266218 532436 665545 1064872 1331090 2129744 2662180 5324360 10648720