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12512010452 = 223128002613
BaseRepresentation
bin10111010011100011…
…00010000011010100
31012021222112222122112
423221301202003110
5201111033313302
65425315450152
7622026222404
oct135161420324
935258488575
1012512010452
115340781707
1225122b6958
1312452635a6
14869a1c804
154d36ac552
hex2e9c620d4

12512010452 has 6 divisors (see below), whose sum is σ = 21896018298. Its totient is φ = 6256005224.

The previous prime is 12512010451. The next prime is 12512010461. The reversal of 12512010452 is 25401021521.

It can be written as a sum of positive squares in only one way, i.e., 12437602576 + 74407876 = 111524^2 + 8626^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512010451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564001303 + ... + 1564001310.

It is an arithmetic number, because the mean of its divisors is an integer number (3649336383).

Almost surely, 212512010452 is an apocalyptic number.

It is an amenable number.

12512010452 is a deficient number, since it is larger than the sum of its proper divisors (9384007846).

12512010452 is a wasteful number, since it uses less digits than its factorization.

12512010452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128002617 (or 3128002615 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 12512010452 its reverse (25401021521), we get a palindrome (37913031973).

The spelling of 12512010452 in words is "twelve billion, five hundred twelve million, ten thousand, four hundred fifty-two".

Divisors: 1 2 4 3128002613 6256005226 12512010452