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10001212313 = 21391467543
BaseRepresentation
bin10010101000001111…
…00110001110011001
3221211000001020002212
421110013212032121
5130440302243223
64332224404505
7502560621251
oct112407461631
927730036085
1010001212313
114272472924
121b31476735
13c35023211
146ac39a961
153d804c278
hex2541e6399

10001212313 has 4 divisors (see below), whose sum is σ = 10001701248. Its totient is φ = 10000723380.

The previous prime is 10001212303. The next prime is 10001212379. The reversal of 10001212313 is 31321210001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10001212313 - 28 = 10001212057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001212303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212381 + ... + 255162.

It is an arithmetic number, because the mean of its divisors is an integer number (2500425312).

Almost surely, 210001212313 is an apocalyptic number.

It is an amenable number.

10001212313 is a deficient number, since it is larger than the sum of its proper divisors (488935).

10001212313 is an equidigital number, since it uses as much as digits as its factorization.

10001212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488934.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10001212313 its reverse (31321210001), we get a palindrome (41322422314).

The spelling of 10001212313 in words is "ten billion, one million, two hundred twelve thousand, three hundred thirteen".

Divisors: 1 21391 467543 10001212313