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245093537 = 1318853349
BaseRepresentation
bin11101001101111…
…01010010100001
3122002012001010102
432212331102201
51000220443122
640153112145
76034155263
oct1646752241
9562161112
10245093537
11116392447
126a0b8655
133ba15380
142479db33
15167b5492
hexe9bd4a1

245093537 has 4 divisors (see below), whose sum is σ = 263946900. Its totient is φ = 226240176.

The previous prime is 245093477. The next prime is 245093549. The reversal of 245093537 is 735390542.

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 29855296 + 215238241 = 5464^2 + 14671^2 .

It is a cyclic number.

It is not a de Polignac number, because 245093537 - 210 = 245092513 is a prime.

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 245093537.

It is not an unprimeable number, because it can be changed into a prime (245093837) 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, 9426662 + ... + 9426687.

It is an arithmetic number, because the mean of its divisors is an integer number (65986725).

Almost surely, 2245093537 is an apocalyptic number.

It is an amenable number.

245093537 is a deficient number, since it is larger than the sum of its proper divisors (18853363).

245093537 is a wasteful number, since it uses less digits than its factorization.

245093537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18853362.

The product of its (nonzero) digits is 113400, while the sum is 38.

The square root of 245093537 is about 15655.4634872303. The cubic root of 245093537 is about 625.8120959167.

The spelling of 245093537 in words is "two hundred forty-five million, ninety-three thousand, five hundred thirty-seven".

Divisors: 1 13 18853349 245093537