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10601361881 = 11287614561
BaseRepresentation
bin10011101111110001…
…11111000111011001
31000100211022222112122
421313320333013121
5133202422040011
64511543551025
7523466042405
oct116770770731
930324288478
1010601361881
114550213100
12207a45b475
13ccc471bc6
14727d82105
15420a993db
hex277e3f1d9

10601361881 has 6 divisors (see below), whose sum is σ = 11652736746. Its totient is φ = 9637601600.

The previous prime is 10601361821. The next prime is 10601361913. The reversal of 10601361881 is 18816310601.

It can be written as a sum of positive squares in only one way, i.e., 5827795600 + 4773566281 = 76340^2 + 69091^2 .

It is not a de Polignac number, because 10601361881 - 26 = 10601361817 is a prime.

It is a super-2 number, since 2×106013618812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10601361821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43807160 + ... + 43807401.

It is an arithmetic number, because the mean of its divisors is an integer number (1942122791).

Almost surely, 210601361881 is an apocalyptic number.

10601361881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10601361881 is a deficient number, since it is larger than the sum of its proper divisors (1051374865).

10601361881 is an equidigital number, since it uses as much as digits as its factorization.

10601361881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87614583 (or 87614572 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 10601361881 in words is "ten billion, six hundred one million, three hundred sixty-one thousand, eight hundred eighty-one".

Divisors: 1 11 121 87614561 963760171 10601361881