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105155331 = 3713831289
BaseRepresentation
bin1100100010010…
…00101100000011
321022212102222220
412101020230003
5203404432311
614233502123
72414543211
oct621105403
9238772886
10105155331
11543a2836
122b271943
1318a2a1b8
14dd73cb1
159372206
hex6448b03

105155331 has 16 divisors (see below), whose sum is σ = 142663680. Its totient is φ = 68882240.

The previous prime is 105155327. The next prime is 105155341. The reversal of 105155331 is 133551501.

It is a cyclic number.

It is not a de Polignac number, because 105155331 - 22 = 105155327 is a prime.

It is a super-3 number, since 3×1051553313 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (105155311) 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, 80935 + ... + 82223.

It is an arithmetic number, because the mean of its divisors is an integer number (8916480).

Almost surely, 2105155331 is an apocalyptic number.

105155331 is a deficient number, since it is larger than the sum of its proper divisors (37508349).

105155331 is a wasteful number, since it uses less digits than its factorization.

105155331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746.

The product of its (nonzero) digits is 1125, while the sum is 24.

The square root of 105155331 is about 10254.5273416184. The cubic root of 105155331 is about 472.0019196393.

The spelling of 105155331 in words is "one hundred five million, one hundred fifty-five thousand, three hundred thirty-one".

Divisors: 1 3 71 213 383 1149 1289 3867 27193 81579 91519 274557 493687 1481061 35051777 105155331