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10523380 = 225775167
BaseRepresentation
bin101000001001…
…001011110100
3201210122100211
4220021023310
510143222010
61013315204
7155306260
oct50111364
921718324
1010523380
115a3840a
123635b04
132245b6a
14157d0a0
15dcd08a
hexa092f4

10523380 has 24 divisors (see below), whose sum is σ = 25256448. Its totient is φ = 3607968.

The previous prime is 10523377. The next prime is 10523389. The reversal of 10523380 is 8332501.

It is a super-2 number, since 2×105233802 = 221483053248800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10523389) 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, 37444 + ... + 37723.

It is an arithmetic number, because the mean of its divisors is an integer number (1052352).

Almost surely, 210523380 is an apocalyptic number.

10523380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10523380 is an abundant number, since it is smaller than the sum of its proper divisors (14733068).

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

10523380 is a wasteful number, since it uses less digits than its factorization.

10523380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75183 (or 75181 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 10523380 is about 3243.9759555212. The cubic root of 10523380 is about 219.1383653323.

Adding to 10523380 its reverse (8332501), we get a palindrome (18855881).

The spelling of 10523380 in words is "ten million, five hundred twenty-three thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 75167 150334 300668 375835 526169 751670 1052338 1503340 2104676 2630845 5261690 10523380