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16869023 = 27760899
BaseRepresentation
bin100000001011…
…0011010011111
31011202000221122
41000112122133
513304302043
61401321155
7263245553
oct100263237
934660848
1016869023
119581a46
1257961bb
133658292
142351863
151733368
hex101669f

16869023 has 4 divisors (see below), whose sum is σ = 16930200. Its totient is φ = 16807848.

The previous prime is 16868993. The next prime is 16869037. The reversal of 16869023 is 32096861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32096861 = 156720483.

It is a cyclic number.

It is not a de Polignac number, because 16869023 - 212 = 16864927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16869043) 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, 30173 + ... + 30726.

It is an arithmetic number, because the mean of its divisors is an integer number (4232550).

Almost surely, 216869023 is an apocalyptic number.

16869023 is a deficient number, since it is larger than the sum of its proper divisors (61177).

16869023 is an equidigital number, since it uses as much as digits as its factorization.

16869023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61176.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 16869023 is about 4107.1916195863. The cubic root of 16869023 is about 256.4661053848.

The spelling of 16869023 in words is "sixteen million, eight hundred sixty-nine thousand, twenty-three".

Divisors: 1 277 60899 16869023