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10603828661 = 52320275007
BaseRepresentation
bin10011110000000100…
…11001010110110101
31000100222222022022212
421320002121112311
5133204040004121
64512112503205
7523526025236
oct117002312665
930328868285
1010603828661
114551648468
12207b24ab05
13cccb2693a
1472842508d
15420dd525b
hex2780995b5

10603828661 has 4 divisors (see below), whose sum is σ = 10624104192. Its totient is φ = 10583553132.

The previous prime is 10603828639. The next prime is 10603828691. The reversal of 10603828661 is 16682830601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16682830601 = 102531627117.

It is a cyclic number.

It is not a de Polignac number, because 10603828661 - 230 = 9530086837 is a prime.

It is a super-2 number, since 2×106038286612 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10603828601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10136981 + ... + 10138026.

It is an arithmetic number, because the mean of its divisors is an integer number (2656026048).

Almost surely, 210603828661 is an apocalyptic number.

It is an amenable number.

10603828661 is a deficient number, since it is larger than the sum of its proper divisors (20275531).

10603828661 is an equidigital number, since it uses as much as digits as its factorization.

10603828661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20275530.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 10603828661 in words is "ten billion, six hundred three million, eight hundred twenty-eight thousand, six hundred sixty-one".

Divisors: 1 523 20275007 10603828661