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10212230243 = 19735175991
BaseRepresentation
bin10011000001011001…
…00100010001100011
3222100201010001021202
421200230210101203
5131403312331433
64405203311415
7511032345005
oct114054442143
928321101252
1010212230243
1143705a0806
121b9007b56b
13c699674b7
146cc40a375
153eb830ee8
hex260b24463

10212230243 has 4 divisors (see below), whose sum is σ = 10217408208. Its totient is φ = 10207052280.

The previous prime is 10212230239. The next prime is 10212230263. The reversal of 10212230243 is 34203221201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34203221201 = 156492185649.

It is a cyclic number.

It is not a de Polignac number, because 10212230243 - 22 = 10212230239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10212230213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2586023 + ... + 2589968.

It is an arithmetic number, because the mean of its divisors is an integer number (2554352052).

Almost surely, 210212230243 is an apocalyptic number.

10212230243 is a deficient number, since it is larger than the sum of its proper divisors (5177965).

10212230243 is an equidigital number, since it uses as much as digits as its factorization.

10212230243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5177964.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 10212230243 its reverse (34203221201), we get a palindrome (44415451444).

The spelling of 10212230243 in words is "ten billion, two hundred twelve million, two hundred thirty thousand, two hundred forty-three".

Divisors: 1 1973 5175991 10212230243