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2102255061 = 31913668857
BaseRepresentation
bin111110101001101…
…1101110111010101
312102111202121210120
41331103131313111
513301134130221
6544334342153
7103044605334
oct17523356725
95374677716
102102255061
11989739385
124a805a959
132766ca40a
1415d2b5d1b
15c48605c6
hex7d4dddd5

2102255061 has 8 divisors (see below), whose sum is σ = 2817682944. Its totient is φ = 1394165280.

The previous prime is 2102255041. The next prime is 2102255143. The reversal of 2102255061 is 1605522012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2102255061 - 26 = 2102254997 is a prime.

It is a super-2 number, since 2×21022550612 = 8838952683000227442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102255021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1833856 + ... + 1835001.

It is an arithmetic number, because the mean of its divisors is an integer number (352210368).

Almost surely, 22102255061 is an apocalyptic number.

It is an amenable number.

2102255061 is a deficient number, since it is larger than the sum of its proper divisors (715427883).

2102255061 is a wasteful number, since it uses less digits than its factorization.

2102255061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669051.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2102255061 is about 45850.3550804135. The cubic root of 2102255061 is about 1281.0373794442.

Adding to 2102255061 its reverse (1605522012), we get a palindrome (3707777073).

The spelling of 2102255061 in words is "two billion, one hundred two million, two hundred fifty-five thousand, sixty-one".

Divisors: 1 3 191 573 3668857 11006571 700751687 2102255061