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69421 = 116311
BaseRepresentation
bin10000111100101101
310112020011
4100330231
54210141
61253221
7406252
oct207455
9115204
1069421
1148180
1234211
13257a1
141b429
1515881
hex10f2d

69421 has 4 divisors (see below), whose sum is σ = 75744. Its totient is φ = 63100.

The previous prime is 69403. The next prime is 69427. The reversal of 69421 is 12496.

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 69421 - 25 = 69389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69392 and 69401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69427) 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, 3145 + ... + 3166.

It is an arithmetic number, because the mean of its divisors is an integer number (18936).

269421 is an apocalyptic number.

It is an amenable number.

69421 is a deficient number, since it is larger than the sum of its proper divisors (6323).

69421 is a wasteful number, since it uses less digits than its factorization.

69421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6322.

The product of its digits is 432, while the sum is 22.

The square root of 69421 is about 263.4786518866. The cubic root of 69421 is about 41.0989085338.

The spelling of 69421 in words is "sixty-nine thousand, four hundred twenty-one".

Divisors: 1 11 6311 69421