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10261604285 = 52052320857
BaseRepresentation
bin10011000111010001…
…11010011110111101
3222111011000111201222
421203220322132331
5132003432314120
64414125443125
7512202124442
oct114350723675
928434014658
1010261604285
1143964541a9
121ba47104a5
13c76c639ca
146d4bbd9c9
15400d35525
hex263a3a7bd

10261604285 has 4 divisors (see below), whose sum is σ = 12313925148. Its totient is φ = 8209283424.

The previous prime is 10261604257. The next prime is 10261604293. The reversal of 10261604285 is 58240616201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58240616201 = 517111262931.

It can be written as a sum of positive squares in 2 ways, for example, as 6088056676 + 4173547609 = 78026^2 + 64603^2 .

It is a cyclic number.

It is not a de Polignac number, because 10261604285 - 28 = 10261604029 is a prime.

It is a super-2 number, since 2×102616042852 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026160424 + ... + 1026160433.

It is an arithmetic number, because the mean of its divisors is an integer number (3078481287).

Almost surely, 210261604285 is an apocalyptic number.

It is an amenable number.

10261604285 is a deficient number, since it is larger than the sum of its proper divisors (2052320863).

10261604285 is an equidigital number, since it uses as much as digits as its factorization.

10261604285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052320862.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 10261604285 in words is "ten billion, two hundred sixty-one million, six hundred four thousand, two hundred eighty-five".

Divisors: 1 5 2052320857 10261604285