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10531100 = 2252531987
BaseRepresentation
bin101000001011…
…000100011100
3201211000221202
4220023010130
510143443400
61013415032
7155340626
oct50130434
921730852
1010531100
115a43198
12363a478
132249528
141581c16
15dd04d5
hexa0b11c

10531100 has 36 divisors (see below), whose sum is σ = 23295384. Its totient is φ = 4130880.

The previous prime is 10531099. The next prime is 10531121. The reversal of 10531100 is 113501.

It is a super-2 number, since 2×105311002 = 221808134420000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4307 + ... + 6293.

It is an arithmetic number, because the mean of its divisors is an integer number (647094).

Almost surely, 210531100 is an apocalyptic number.

10531100 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 10531100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11647692).

10531100 is an abundant number, since it is smaller than the sum of its proper divisors (12764284).

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

10531100 is a wasteful number, since it uses less digits than its factorization.

10531100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054 (or 2047 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 11.

The square root of 10531100 is about 3245.1656352180. The cubic root of 10531100 is about 219.1919392049.

Adding to 10531100 its reverse (113501), we get a palindrome (10644601).

The spelling of 10531100 in words is "ten million, five hundred thirty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 53 100 106 212 265 530 1060 1325 1987 2650 3974 5300 7948 9935 19870 39740 49675 99350 105311 198700 210622 421244 526555 1053110 2106220 2632775 5265550 10531100