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10261105501 is a prime number
BaseRepresentation
bin10011000111001110…
…00000101101011101
3222111010002011112111
421203213000231131
5132003320334001
64414111034021
7512164646323
oct114347005535
928433064474
1010261105501
114396143489
121ba450b911
13c76b1a97a
146d4acdd13
15400c87851
hex2639c0b5d

10261105501 has 2 divisors, whose sum is σ = 10261105502. Its totient is φ = 10261105500.

The previous prime is 10261105489. The next prime is 10261105541. The reversal of 10261105501 is 10550116201.

It is a happy number.

10261105501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6972083001 + 3289022500 = 83499^2 + 57350^2 .

It is a cyclic number.

It is not a de Polignac number, because 10261105501 - 29 = 10261104989 is a prime.

It is a super-2 number, since 2×102611055012 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10261105541) 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, 5130552750 + 5130552751.

It is an arithmetic number, because the mean of its divisors is an integer number (5130552751).

Almost surely, 210261105501 is an apocalyptic number.

It is an amenable number.

10261105501 is a deficient number, since it is larger than the sum of its proper divisors (1).

10261105501 is an equidigital number, since it uses as much as digits as its factorization.

10261105501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 22.

The spelling of 10261105501 in words is "ten billion, two hundred sixty-one million, one hundred five thousand, five hundred one".