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10212398951 = 90089113359
BaseRepresentation
bin10011000001011010…
…01101011101100111
3222100201102121201012
421200231031131213
5131403333231301
64405211052435
7511033646606
oct114055153547
928321377635
1010212398951
1143706a6537
121b9014111b
13c699c6221
146cc451a3d
153eb865ebb
hex260b4d767

10212398951 has 4 divisors (see below), whose sum is σ = 10212602400. Its totient is φ = 10212195504.

The previous prime is 10212398947. The next prime is 10212398957. The reversal of 10212398951 is 15989321201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15989321201 = 72284188743.

It is a cyclic number.

It is not a de Polignac number, because 10212398951 - 22 = 10212398947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10212398899 and 10212398908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212398957) 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, 33410 + ... + 146768.

It is an arithmetic number, because the mean of its divisors is an integer number (2553150600).

Almost surely, 210212398951 is an apocalyptic number.

10212398951 is a deficient number, since it is larger than the sum of its proper divisors (203449).

10212398951 is an equidigital number, since it uses as much as digits as its factorization.

10212398951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203448.

The product of its (nonzero) digits is 38880, while the sum is 41.

The spelling of 10212398951 in words is "ten billion, two hundred twelve million, three hundred ninety-eight thousand, nine hundred fifty-one".

Divisors: 1 90089 113359 10212398951