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10905573992 = 232161363073
BaseRepresentation
bin10100010100000010…
…11101101001101000
31001011000202120002212
422022001131221220
5134313311331432
65002052144252
7534151564235
oct121201355150
931130676085
1010905573992
114696a04175
122144308088
13104a4b5c81
1475653078c
1543c63b2b2
hex28a05da68

10905573992 has 16 divisors (see below), whose sum is σ = 20449221540. Its totient is φ = 5452448256.

The previous prime is 10905573953. The next prime is 10905573997. The reversal of 10905573992 is 29937550901.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10902283396 + 3290596 = 104414^2 + 1814^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10905573992.

It is not an unprimeable number, because it can be changed into a prime (10905573997) 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, 141368 + ... + 204440.

Almost surely, 210905573992 is an apocalyptic number.

It is an amenable number.

10905573992 is a deficient number, since it is larger than the sum of its proper divisors (9543647548).

10905573992 is a wasteful number, since it uses less digits than its factorization.

10905573992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84692 (or 84688 counting only the distinct ones).

The product of its (nonzero) digits is 765450, while the sum is 50.

The spelling of 10905573992 in words is "ten billion, nine hundred five million, five hundred seventy-three thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 21613 43226 63073 86452 126146 172904 252292 504584 1363196749 2726393498 5452786996 10905573992