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55210713 = 31719227251
BaseRepresentation
bin1101001010011…
…1001011011001
310211212222212020
43102213023121
5103113220323
65251205053
71240166115
oct322471331
9124788766
1055210713
112918a698
12165a6789
13b59107c
147492745
154ca8ae3
hex34a72d9

55210713 has 32 divisors (see below), whose sum is σ = 82736640. Its totient is φ = 32544000.

The previous prime is 55210711. The next prime is 55210717. The reversal of 55210713 is 31701255.

It is not a de Polignac number, because 55210713 - 21 = 55210711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55210711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219838 + ... + 220088.

It is an arithmetic number, because the mean of its divisors is an integer number (2585520).

Almost surely, 255210713 is an apocalyptic number.

It is an amenable number.

55210713 is a deficient number, since it is larger than the sum of its proper divisors (27525927).

55210713 is a wasteful number, since it uses less digits than its factorization.

55210713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 55210713 is about 7430.3911740904. The cubic root of 55210713 is about 380.7802826550.

Adding to 55210713 its reverse (31701255), we get a palindrome (86911968).

The spelling of 55210713 in words is "fifty-five million, two hundred ten thousand, seven hundred thirteen".

Divisors: 1 3 17 19 51 57 227 251 323 681 753 969 3859 4267 4313 4769 11577 12801 12939 14307 56977 73321 81073 170931 219963 243219 968609 1082563 2905827 3247689 18403571 55210713