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22773025 = 521182811
BaseRepresentation
bin101011011011…
…1110100100001
31120211222201101
41112313310201
521312214100
62132034401
7364365442
oct126676441
946758641
1022773025
1111944790
127762a01
134944682
14304b2c9
151eec86a
hex15b7d21

22773025 has 12 divisors (see below), whose sum is σ = 30806064. Its totient is φ = 16562000.

The previous prime is 22772993. The next prime is 22773029. The reversal of 22773025 is 52037722.

It is not a de Polignac number, because 22773025 - 25 = 22772993 is a prime.

It is a super-2 number, since 2×227730252 = 1037221335301250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22772984 and 22773002.

It is not an unprimeable number, because it can be changed into a prime (22773029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41131 + ... + 41680.

It is an arithmetic number, because the mean of its divisors is an integer number (2567172).

Almost surely, 222773025 is an apocalyptic number.

22773025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22773025 is a deficient number, since it is larger than the sum of its proper divisors (8033039).

22773025 is a wasteful number, since it uses less digits than its factorization.

22773025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82832 (or 82827 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 22773025 is about 4772.1090725171. The cubic root of 22773025 is about 283.4481157390.

The spelling of 22773025 in words is "twenty-two million, seven hundred seventy-three thousand, twenty-five".

Divisors: 1 5 11 25 55 275 82811 414055 910921 2070275 4554605 22773025