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2173069 = 3170099
BaseRepresentation
bin1000010010100010001101
311002101220001
420102202031
51024014234
6114324301
724320323
oct10224215
94071801
102173069
111254728
12889691
135b1152
14407d13
152cdd14
hex21288d

2173069 has 4 divisors (see below), whose sum is σ = 2243200. Its totient is φ = 2102940.

The previous prime is 2173051. The next prime is 2173079. The reversal of 2173069 is 9603712.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2173069 - 211 = 2171021 is a prime.

It is a super-2 number, since 2×21730692 = 9444457757522, which contains 22 as substring.

It is a Duffinian number.

2173069 is a modest number, since divided by 3069 gives 217 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173009) 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, 35019 + ... + 35080.

It is an arithmetic number, because the mean of its divisors is an integer number (560800).

22173069 is an apocalyptic number.

It is an amenable number.

2173069 is a deficient number, since it is larger than the sum of its proper divisors (70131).

2173069 is an equidigital number, since it uses as much as digits as its factorization.

2173069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70130.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 2173069 is about 1474.1333046913. The cubic root of 2173069 is about 129.5262639097.

The spelling of 2173069 in words is "two million, one hundred seventy-three thousand, sixty-nine".

Divisors: 1 31 70099 2173069