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12520010 = 251737237
BaseRepresentation
bin101111110000…
…101001001010
3212120002020002
4233300221022
511201120020
61124203002
7211263326
oct57605112
925502202
1012520010
117081518
124239462
1327948b9
14193c986
151174975
hexbf0a4a

12520010 has 16 divisors (see below), whose sum is σ = 22669416. Its totient is φ = 4978368.

The previous prime is 12520003. The next prime is 12520021. The reversal of 12520010 is 1002521.

12520010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12271009 + 249001 = 3503^2 + 499^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12519973 and 12520000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1889 + ... + 5348.

Almost surely, 212520010 is an apocalyptic number.

12520010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12520010 is a deficient number, since it is larger than the sum of its proper divisors (10149406).

12520010 is a wasteful number, since it uses less digits than its factorization.

12520010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7417.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 12520010 is about 3538.3626156741. The cubic root of 12520010 is about 232.2032132497.

Adding to 12520010 its reverse (1002521), we get a palindrome (13522531).

The spelling of 12520010 in words is "twelve million, five hundred twenty thousand, ten".

Divisors: 1 2 5 10 173 346 865 1730 7237 14474 36185 72370 1252001 2504002 6260005 12520010