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53260581 = 3117322109
BaseRepresentation
bin1100101100101…
…1000100100101
310201012220210010
43023023010211
5102113314311
65141320433
71214464443
oct313130445
9121186703
1053260581
1128078510
1215a06119
13b05a54a
147105b93
154a20da6
hex32cb125

53260581 has 16 divisors (see below), whose sum is σ = 78534720. Its totient is φ = 31835520.

The previous prime is 53260567. The next prime is 53260583. The reversal of 53260581 is 18506235.

It is not a de Polignac number, because 53260581 - 27 = 53260453 is a prime.

It is a super-2 number, since 2×532605812 = 5673378976915122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53260583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8646 + ... + 13463.

It is an arithmetic number, because the mean of its divisors is an integer number (4908420).

Almost surely, 253260581 is an apocalyptic number.

It is an amenable number.

53260581 is a deficient number, since it is larger than the sum of its proper divisors (25274139).

53260581 is a wasteful number, since it uses less digits than its factorization.

53260581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22196.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 53260581 is about 7297.9847218256. The cubic root of 53260581 is about 376.2431772511.

The spelling of 53260581 in words is "fifty-three million, two hundred sixty thousand, five hundred eighty-one".

Divisors: 1 3 11 33 73 219 803 2409 22109 66327 243199 729597 1613957 4841871 17753527 53260581