Search a number
-
+
2173389 = 31913793
BaseRepresentation
bin1000010010100111001101
311002102022220
420102213031
51024022024
6114325553
724321261
oct10224715
94072286
102173389
111254999
128898b9
135b133a
144080a1
152cde79
hex2129cd

2173389 has 8 divisors (see below), whose sum is σ = 2913792. Its totient is φ = 1440960.

The previous prime is 2173387. The next prime is 2173393. The reversal of 2173389 is 9833712.

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

It is not a de Polignac number, because 2173389 - 21 = 2173387 is a prime.

It is a d-powerful number, because it can be written as 27 + 1 + 75 + 35 + 310 + 87 + 9 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173387) 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, 1324 + ... + 2469.

It is an arithmetic number, because the mean of its divisors is an integer number (364224).

22173389 is an apocalyptic number.

It is an amenable number.

2173389 is a deficient number, since it is larger than the sum of its proper divisors (740403).

2173389 is a wasteful number, since it uses less digits than its factorization.

2173389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987.

The product of its digits is 9072, while the sum is 33.

The square root of 2173389 is about 1474.2418390481. The cubic root of 2173389 is about 129.5326214882.

The spelling of 2173389 in words is "two million, one hundred seventy-three thousand, three hundred eighty-nine".

Divisors: 1 3 191 573 3793 11379 724463 2173389