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623023141 = 1347924857
BaseRepresentation
bin100101001000101…
…001010000100101
31121102022212002011
4211020221100211
52233443220031
6141453314221
721303415666
oct4510512045
91542285064
10623023141
1129a753564
12154795971
139c0ca060
145ca5b36d
1539a696b1
hex25229425

623023141 has 4 divisors (see below), whose sum is σ = 670948012. Its totient is φ = 575098272.

The previous prime is 623023139. The next prime is 623023147. The reversal of 623023141 is 141320326.

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 291419041 + 331604100 = 17071^2 + 18210^2 .

It is a cyclic number.

It is not a de Polignac number, because 623023141 - 21 = 623023139 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 (623023147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23962416 + ... + 23962441.

It is an arithmetic number, because the mean of its divisors is an integer number (167737003).

Almost surely, 2623023141 is an apocalyptic number.

It is an amenable number.

623023141 is a deficient number, since it is larger than the sum of its proper divisors (47924871).

623023141 is a wasteful number, since it uses less digits than its factorization.

623023141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47924870.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 623023141 is about 24960.4315066867. The cubic root of 623023141 is about 854.0855862355.

Adding to 623023141 its reverse (141320326), we get a palindrome (764343467).

It can be divided in two parts, 62 and 3023141, that added together give a palindrome (3023203).

The spelling of 623023141 in words is "six hundred twenty-three million, twenty-three thousand, one hundred forty-one".

Divisors: 1 13 47924857 623023141