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12502250010 = 2325138913889
BaseRepresentation
bin10111010010011000…
…10011001000011010
31012021022012002211200
423221030103020122
5201101034000020
65424330335030
7621550241325
oct135114231032
935238162750
1012502250010
115336215528
12250ab8a476
131243226a93
148685db7bc
154d28d0590
hex2e931321a

12502250010 has 24 divisors (see below), whose sum is σ = 32505850260. Its totient is φ = 3333933312.

The previous prime is 12502250009. The next prime is 12502250039. The reversal of 12502250010 is 1005220521.

It can be written as a sum of positive squares in 2 ways, for example, as 12502146969 + 103041 = 111813^2 + 321^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 69456855 + ... + 69457034.

Almost surely, 212502250010 is an apocalyptic number.

12502250010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12502250010 is an abundant number, since it is smaller than the sum of its proper divisors (20003600250).

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

12502250010 is a wasteful number, since it uses less digits than its factorization.

12502250010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138913902 (or 138913899 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

Adding to 12502250010 its reverse (1005220521), we get a palindrome (13507470531).

The spelling of 12502250010 in words is "twelve billion, five hundred two million, two hundred fifty thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 138913889 277827778 416741667 694569445 833483334 1250225001 1389138890 2083708335 2500450002 4167416670 6251125005 12502250010