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10200754985 = 52040150997
BaseRepresentation
bin10011000000000001…
…10010101100101001
3222022220112001012012
421200000302230221
5131342343124420
64404113325305
7510532662311
oct114000625451
928286461165
1010200754985
114365073223
121b88266835
13c6747a2c5
146caaa0441
153ea815dc5
hex260032b29

10200754985 has 4 divisors (see below), whose sum is σ = 12240905988. Its totient is φ = 8160603984.

The previous prime is 10200754961. The next prime is 10200755041. The reversal of 10200754985 is 58945700201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58945700201 = 91164704391.

It can be written as a sum of positive squares in 2 ways, for example, as 5035889296 + 5164865689 = 70964^2 + 71867^2 .

It is a cyclic number.

It is not a de Polignac number, because 10200754985 - 220 = 10199706409 is a prime.

It is a Duffinian number.

It is a Curzon 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, 1020075494 + ... + 1020075503.

It is an arithmetic number, because the mean of its divisors is an integer number (3060226497).

Almost surely, 210200754985 is an apocalyptic number.

It is an amenable number.

10200754985 is a deficient number, since it is larger than the sum of its proper divisors (2040151003).

10200754985 is an equidigital number, since it uses as much as digits as its factorization.

10200754985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040151002.

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 10200754985 in words is "ten billion, two hundred million, seven hundred fifty-four thousand, nine hundred eighty-five".

Divisors: 1 5 2040150997 10200754985