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655048213 = 6797710007
BaseRepresentation
bin100111000010110…
…011111000010101
31200122120220012221
4213002303320111
52320143020323
6144555542341
722142550361
oct4702637025
91618526187
10655048213
11306837466
1216345a9b1
13a59309c1
1462dd62a1
153c79355d
hex270b3e15

655048213 has 8 divisors (see below), whose sum is σ = 665572032. Its totient is φ = 644546496.

The previous prime is 655048193. The next prime is 655048217. The reversal of 655048213 is 312840556.

655048213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-655048213 is a prime.

It is a super-2 number, since 2×6550482132 = 858176322708986738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655048217) 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, 60456 + ... + 70462.

It is an arithmetic number, because the mean of its divisors is an integer number (83196504).

Almost surely, 2655048213 is an apocalyptic number.

It is an amenable number.

655048213 is a deficient number, since it is larger than the sum of its proper divisors (10523819).

655048213 is a wasteful number, since it uses less digits than its factorization.

655048213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11051.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 655048213 is about 25593.9096857045. The cubic root of 655048213 is about 868.4758680439.

Adding to 655048213 its reverse (312840556), we get a palindrome (967888769).

The spelling of 655048213 in words is "six hundred fifty-five million, forty-eight thousand, two hundred thirteen".

Divisors: 1 67 977 10007 65459 670469 9776839 655048213