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10211012258 = 25105506129
BaseRepresentation
bin10011000001001111…
…11010111010100010
3222100121211011112012
421200213322322202
5131403004343013
64405121232522
7511016113016
oct114047727242
928317734465
1010211012258
11436a939707
121b8b792742
13c6962bcb5
146cc1b0546
153eb6901a8
hex2609faea2

10211012258 has 4 divisors (see below), whose sum is σ = 15316518390. Its totient is φ = 5105506128.

The previous prime is 10211012257. The next prime is 10211012299. The reversal of 10211012258 is 85221011201.

10211012258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9828144769 + 382867489 = 99137^2 + 19567^2 .

It is not an unprimeable number, because it can be changed into a prime (10211012257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2552753063 + ... + 2552753066.

Almost surely, 210211012258 is an apocalyptic number.

10211012258 is a deficient number, since it is larger than the sum of its proper divisors (5105506132).

10211012258 is an equidigital number, since it uses as much as digits as its factorization.

10211012258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5105506131.

The product of its (nonzero) digits is 320, while the sum is 23.

Adding to 10211012258 its reverse (85221011201), we get a palindrome (95432023459).

The spelling of 10211012258 in words is "ten billion, two hundred eleven million, twelve thousand, two hundred fifty-eight".

Divisors: 1 2 5105506129 10211012258