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16930429 = 21180239
BaseRepresentation
bin100000010010…
…1011001111101
31011212011011221
41000211121331
513313233204
61402513341
7263622565
oct100453175
934764157
1016930429
11961409a
125805851
13367a209
142369da5
151746654
hex102567d

16930429 has 4 divisors (see below), whose sum is σ = 17010880. Its totient is φ = 16849980.

The previous prime is 16930427. The next prime is 16930439. The reversal of 16930429 is 92403961.

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 16930429 - 21 = 16930427 is a prime.

It is a super-2 number, since 2×169304292 = 573278852248082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16930394 and 16930403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16930421) 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, 39909 + ... + 40330.

It is an arithmetic number, because the mean of its divisors is an integer number (4252720).

Almost surely, 216930429 is an apocalyptic number.

It is an amenable number.

16930429 is a deficient number, since it is larger than the sum of its proper divisors (80451).

16930429 is an equidigital number, since it uses as much as digits as its factorization.

16930429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80450.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 16930429 is about 4114.6602532894. The cubic root of 16930429 is about 256.7769213917.

The spelling of 16930429 in words is "sixteen million, nine hundred thirty thousand, four hundred twenty-nine".

Divisors: 1 211 80239 16930429