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61023311 = 1973071009
BaseRepresentation
bin1110100011001…
…0010001001111
311020211022020122
43220302101033
5111110221221
610015535155
71340455346
oct350622117
9136738218
1061023311
113149a798
121852a4bb
13c84798b
148166b5d
155555eab
hex3a3244f

61023311 has 8 divisors (see below), whose sum is σ = 61593840. Its totient is φ = 60455808.

The previous prime is 61023289. The next prime is 61023317. The reversal of 61023311 is 11332016.

61023311 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 not a de Polignac number, because 61023311 - 214 = 61006927 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 61023311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61023317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59975 + ... + 60983.

It is an arithmetic number, because the mean of its divisors is an integer number (7699230).

Almost surely, 261023311 is an apocalyptic number.

61023311 is a deficient number, since it is larger than the sum of its proper divisors (570529).

61023311 is a wasteful number, since it uses less digits than its factorization.

61023311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 61023311 is about 7811.7418672150. The cubic root of 61023311 is about 393.6998560147.

Adding to 61023311 its reverse (11332016), we get a palindrome (72355327).

The spelling of 61023311 in words is "sixty-one million, twenty-three thousand, three hundred eleven".

Divisors: 1 197 307 1009 60479 198773 309763 61023311