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10201211205 = 35760389449
BaseRepresentation
bin10011000000000101…
…00010000101000101
3222022221101020000020
421200002202011011
5131343002224310
64404131205353
7510536602353
oct114002420505
928287336006
1010201211205
114365354a69
121b88446859
13c675a9b63
146cab7c7d3
153ea8a6170
hex2600a2145

10201211205 has 16 divisors (see below), whose sum is σ = 16324267200. Its totient is φ = 5439869568.

The previous prime is 10201211203. The next prime is 10201211213. The reversal of 10201211205 is 50211210201.

It is not a de Polignac number, because 10201211205 - 21 = 10201211203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201211203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69321 + ... + 158769.

It is an arithmetic number, because the mean of its divisors is an integer number (1020266700).

Almost surely, 210201211205 is an apocalyptic number.

10201211205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10201211205 is a deficient number, since it is larger than the sum of its proper divisors (6123055995).

10201211205 is an equidigital number, since it uses as much as digits as its factorization.

10201211205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97060.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 10201211205 its reverse (50211210201), we get a palindrome (60412421406).

The spelling of 10201211205 in words is "ten billion, two hundred one million, two hundred eleven thousand, two hundred five".

Divisors: 1 3 5 15 7603 22809 38015 89449 114045 268347 447245 1341735 680080747 2040242241 3400403735 10201211205