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106210765 = 521242153
BaseRepresentation
bin1100101010010…
…10010111001101
321101212001210001
412111022113031
5204142221030
614312244301
72426530243
oct625122715
9241761701
10106210765
1154a537a1
122b6a0691
131900970b
141016a793
1594cecca
hex654a5cd

106210765 has 4 divisors (see below), whose sum is σ = 127452924. Its totient is φ = 84968608.

The previous prime is 106210763. The next prime is 106210807. The reversal of 106210765 is 567012601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 567012601 = 1637346373.

It can be written as a sum of positive squares in 2 ways, for example, as 20629764 + 85581001 = 4542^2 + 9251^2 .

It is a cyclic number.

It is not a de Polignac number, because 106210765 - 21 = 106210763 is a prime.

It is a super-2 number, since 2×1062107652 = 22561453203770450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106210763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10621072 + ... + 10621081.

It is an arithmetic number, because the mean of its divisors is an integer number (31863231).

Almost surely, 2106210765 is an apocalyptic number.

It is an amenable number.

106210765 is a deficient number, since it is larger than the sum of its proper divisors (21242159).

106210765 is an equidigital number, since it uses as much as digits as its factorization.

106210765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21242158.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 106210765 is about 10305.8607112652. The cubic root of 106210765 is about 473.5758116988.

It can be divided in two parts, 10621076 and 5, that added together give a square (10621081 = 32592).

The spelling of 106210765 in words is "one hundred six million, two hundred ten thousand, seven hundred sixty-five".

Divisors: 1 5 21242153 106210765