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55245313 = 711515153
BaseRepresentation
bin1101001010111…
…1101000000001
310211221202022201
43102233220001
5103120322223
65252033201
71240402024
oct322575001
9124852281
1055245313
1129203692
1216602801
13b5a3a46
1474a11bb
154cb3ead
hex34afa01

55245313 has 8 divisors (see below), whose sum is σ = 56405376. Its totient is φ = 54096000.

The previous prime is 55245271. The next prime is 55245341. The reversal of 55245313 is 31354255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55245313 - 29 = 55244801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55245343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8145 + ... + 13297.

It is an arithmetic number, because the mean of its divisors is an integer number (7050672).

Almost surely, 255245313 is an apocalyptic number.

It is an amenable number.

55245313 is a deficient number, since it is larger than the sum of its proper divisors (1160063).

55245313 is a wasteful number, since it uses less digits than its factorization.

55245313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5375.

The product of its digits is 9000, while the sum is 28.

The square root of 55245313 is about 7432.7190852339. The cubic root of 55245313 is about 380.8598097722.

Adding to 55245313 its reverse (31354255), we get a palindrome (86599568).

The spelling of 55245313 in words is "fifty-five million, two hundred forty-five thousand, three hundred thirteen".

Divisors: 1 71 151 5153 10721 365863 778103 55245313