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23641069 = 113209213
BaseRepresentation
bin101101000101…
…1101111101101
31122111002110011
41122023233231
522023003234
62202413221
7404642254
oct132135755
948432404
1023641069
1112387981
127b01211
134b897ca
1431d579b
15211eb64
hex168bbed

23641069 has 4 divisors (see below), whose sum is σ = 23850396. Its totient is φ = 23431744.

The previous prime is 23641063. The next prime is 23641081. The reversal of 23641069 is 96014632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 476100 + 23164969 = 690^2 + 4813^2 .

It is a cyclic number.

It is not a de Polignac number, because 23641069 - 213 = 23632877 is a prime.

It is a super-2 number, since 2×236410692 = 1117800286925522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23641069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23641063) 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, 104494 + ... + 104719.

It is an arithmetic number, because the mean of its divisors is an integer number (5962599).

Almost surely, 223641069 is an apocalyptic number.

It is an amenable number.

23641069 is a deficient number, since it is larger than the sum of its proper divisors (209327).

23641069 is a wasteful number, since it uses less digits than its factorization.

23641069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209326.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 23641069 is about 4862.2082431751. The cubic root of 23641069 is about 287.0047185261.

The spelling of 23641069 in words is "twenty-three million, six hundred forty-one thousand, sixty-nine".

Divisors: 1 113 209213 23641069