Search a number
69629 = 7429
BaseRepresentation
bin10000111111111101
310112111212
4100333331
54212004
61254205
7410000
oct207775
9115455
1069629
114834a
1234365
1325901
141b537
151596e
hex10ffd

69629 has 10 divisors (see below), whose sum is σ = 84030. Its totient is φ = 57624.

The previous prime is 69623. The next prime is 69653. The reversal of 69629 is 92696.

It can be written as a sum of positive squares in only one way, i.e., 60025 + 9604 = 245^2 + 98^2 .

It is not a de Polignac number, because 69629 - 216 = 4093 is a prime.

It is a Duffinian number.

Its product of digits (5832) is a multiple of the sum of its prime divisors (36).

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 69595 and 69604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69623) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2387 + ... + 2415.

It is an arithmetic number, because the mean of its divisors is an integer number (8403).

269629 is an apocalyptic number.

It is an amenable number.

69629 is a deficient number, since it is larger than the sum of its proper divisors (14401).

69629 is an frugal number, since it uses more digits than its factorization.

69629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57 (or 36 counting only the distinct ones).

The product of its digits is 5832, while the sum is 32.

The square root of 69629 is about 263.8730755496. The cubic root of 69629 is about 41.1399146145.

The spelling of 69629 in words is "sixty-nine thousand, six hundred twenty-nine".

Divisors: 1 7 29 49 203 343 1421 2401 9947 69629