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10221000231 = 313262076929
BaseRepresentation
bin10011000010011100…
…00001011000100111
3222101022121121110010
421201032001120213
5131413034001411
64410115301303
7511200032331
oct114116013047
928338547403
1010221000231
114375540832
121b92baa833
13c6b718240
146cd650451
153ec4b47a6
hex261381627

10221000231 has 8 divisors (see below), whose sum is σ = 14676308080. Its totient is φ = 6289846272.

The previous prime is 10221000227. The next prime is 10221000263. The reversal of 10221000231 is 13200012201.

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

It is not a de Polignac number, because 10221000231 - 22 = 10221000227 is a prime.

It is a super-2 number, since 2×102210002312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221000271) 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, 131038426 + ... + 131038503.

It is an arithmetic number, because the mean of its divisors is an integer number (1834538510).

Almost surely, 210221000231 is an apocalyptic number.

10221000231 is a deficient number, since it is larger than the sum of its proper divisors (4455307849).

10221000231 is a wasteful number, since it uses less digits than its factorization.

10221000231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262076945.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10221000231 its reverse (13200012201), we get a palindrome (23421012432).

The spelling of 10221000231 in words is "ten billion, two hundred twenty-one million, two hundred thirty-one", and thus it is an aban number.

Divisors: 1 3 13 39 262076929 786230787 3407000077 10221000231