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10601212005 = 325235582489
BaseRepresentation
bin10011101111110000…
…11010100001100101
31000100211001100221200
421313320122201211
5133202402241010
64511540433113
7523464546426
oct116770324145
930324040850
1010601212005
11455012053a
12207a3a8799
13ccc41b917
14727d4364d
15420a69cc0
hex277e1a865

10601212005 has 12 divisors (see below), whose sum is σ = 18375434220. Its totient is φ = 5653979712.

The previous prime is 10601211983. The next prime is 10601212081. The reversal of 10601212005 is 50021210601.

It can be written as a sum of positive squares in 2 ways, for example, as 2750897601 + 7850314404 = 52449^2 + 88602^2 .

It is not a de Polignac number, because 10601212005 - 216 = 10601146469 is a prime.

It is a super-2 number, since 2×106012120052 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117791200 + ... + 117791289.

It is an arithmetic number, because the mean of its divisors is an integer number (1531286185).

Almost surely, 210601212005 is an apocalyptic number.

10601212005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10601212005 is a deficient number, since it is larger than the sum of its proper divisors (7774222215).

10601212005 is a wasteful number, since it uses less digits than its factorization.

10601212005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235582500 (or 235582497 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 10601212005 its reverse (50021210601), we get a palindrome (60622422606).

The spelling of 10601212005 in words is "ten billion, six hundred one million, two hundred twelve thousand, five".

Divisors: 1 3 5 9 15 45 235582489 706747467 1177912445 2120242401 3533737335 10601212005