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12503253242 = 213781453641
BaseRepresentation
bin10111010010100000…
…01000000011111010
31012021101002002000102
423221100020003322
5201101313100432
65424404035402
7621561620234
oct135120100372
935241062012
1012503253242
115336840247
12250b392b62
1312434b85cc
148687bd254
154d2a2c962
hex2e94080fa

12503253242 has 8 divisors (see below), whose sum is σ = 18756282132. Its totient is φ = 6251159200.

The previous prime is 12503253229. The next prime is 12503253263. The reversal of 12503253242 is 24235230521.

It can be written as a sum of positive squares in 2 ways, for example, as 12494544841 + 8708401 = 111779^2 + 2951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199259 + ... + 254382.

Almost surely, 212503253242 is an apocalyptic number.

12503253242 is a deficient number, since it is larger than the sum of its proper divisors (6253028890).

12503253242 is a wasteful number, since it uses less digits than its factorization.

12503253242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467424.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 12503253242 its reverse (24235230521), we get a palindrome (36738483763).

The spelling of 12503253242 in words is "twelve billion, five hundred three million, two hundred fifty-three thousand, two hundred forty-two".

Divisors: 1 2 13781 27562 453641 907282 6251626621 12503253242