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442069025 = 5243537759
BaseRepresentation
bin11010010110010…
…111000000100001
31010210211102200212
4122112113000201
51401132202100
6111511023505
713645344656
oct3226270041
91123742625
10442069025
1120759a002
1210406ab95
1370780b08
14429d5c2d
1528c23635
hex1a597021

442069025 has 24 divisors (see below), whose sum is σ = 571570560. Its totient is φ = 338869440.

The previous prime is 442068971. The next prime is 442069027. The reversal of 442069025 is 520960244.

It is not a de Polignac number, because 442069025 - 210 = 442068001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442068982 and 442069000.

It is not an unprimeable number, because it can be changed into a prime (442069027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53096 + ... + 60854.

It is an arithmetic number, because the mean of its divisors is an integer number (23815440).

Almost surely, 2442069025 is an apocalyptic number.

It is an amenable number.

442069025 is a deficient number, since it is larger than the sum of its proper divisors (129501535).

442069025 is a wasteful number, since it uses less digits than its factorization.

442069025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7865 (or 7860 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 442069025 is about 21025.4375697630. The cubic root of 442069025 is about 761.7808107217.

The spelling of 442069025 in words is "four hundred forty-two million, sixty-nine thousand, twenty-five".

Divisors: 1 5 25 43 53 215 265 1075 1325 2279 7759 11395 38795 56975 193975 333637 411227 1668185 2056135 8340925 10280675 17682761 88413805 442069025