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10202121223 = 74731009487
BaseRepresentation
bin10011000000001100…
…00000010000000111
3222100000002110022121
421200012000100013
5131343220334343
64404202510411
7510550412440
oct114006002007
928300073277
1010202121223
114365916748
121b88805407
13c67838128
146cad382c7
153ea9d5aed
hex260180407

10202121223 has 8 divisors (see below), whose sum is σ = 11907643392. Its totient is φ = 8558618136.

The previous prime is 10202121221. The next prime is 10202121253. The reversal of 10202121223 is 32212120201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10202121223 - 21 = 10202121221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10202121197 and 10202121206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202121221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15504415 + ... + 15505072.

It is an arithmetic number, because the mean of its divisors is an integer number (1488455424).

Almost surely, 210202121223 is an apocalyptic number.

10202121223 is a deficient number, since it is larger than the sum of its proper divisors (1705522169).

10202121223 is an equidigital number, since it uses as much as digits as its factorization.

10202121223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31009541.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10202121223 its reverse (32212120201), we get a palindrome (42414241424).

The spelling of 10202121223 in words is "ten billion, two hundred two million, one hundred twenty-one thousand, two hundred twenty-three".

Divisors: 1 7 47 329 31009487 217066409 1457445889 10202121223