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10452820 = 2257197379
BaseRepresentation
bin100111110111…
…111101010100
3201200001120111
4213313331110
510133442240
61012012404
7154563460
oct47677524
921601514
1010452820
11599a3a4
123601104
13221ca01
1415614a0
15db71ea
hex9f7f54

10452820 has 48 divisors (see below), whose sum is σ = 25280640. Its totient is φ = 3556224.

The previous prime is 10452809. The next prime is 10452821. The reversal of 10452820 is 2825401.

It is a super-2 number, since 2×104528202 = 218522891904800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10452791 and 10452800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10452821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27391 + ... + 27769.

It is an arithmetic number, because the mean of its divisors is an integer number (526680).

Almost surely, 210452820 is an apocalyptic number.

10452820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10452820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12640320).

10452820 is an abundant number, since it is smaller than the sum of its proper divisors (14827820).

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

10452820 is a wasteful number, since it uses less digits than its factorization.

10452820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 10452820 is about 3233.0821208253. The cubic root of 10452820 is about 218.6474872050.

The spelling of 10452820 in words is "ten million, four hundred fifty-two thousand, eight hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 197 379 394 758 788 985 1379 1516 1895 1970 2653 2758 3790 3940 5306 5516 6895 7580 10612 13265 13790 26530 27580 53060 74663 149326 298652 373315 522641 746630 1045282 1493260 2090564 2613205 5226410 10452820