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60221213 = 136175941
BaseRepresentation
bin1110010110111…
…0011100011101
311012022112222022
43211232130131
5110404034323
65550425525
71330605023
oct345563435
9135275868
1060221213
1130aa20a8
12182022a5
13c626870
147dd8713
1554484c8
hex396e71d

60221213 has 8 divisors (see below), whose sum is σ = 65917656. Its totient is φ = 54676800.

The previous prime is 60221201. The next prime is 60221219. The reversal of 60221213 is 31212206.

It can be written as a sum of positive squares in 4 ways, for example, as 669124 + 59552089 = 818^2 + 7717^2 .

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 60221213 - 28 = 60220957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 60221191 and 60221200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60221219) 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, 37178 + ... + 38763.

It is an arithmetic number, because the mean of its divisors is an integer number (8239707).

Almost surely, 260221213 is an apocalyptic number.

It is an amenable number.

60221213 is a deficient number, since it is larger than the sum of its proper divisors (5696443).

60221213 is a wasteful number, since it uses less digits than its factorization.

60221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76015.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 60221213 is about 7760.2327929000. The cubic root of 60221213 is about 391.9672960534.

Adding to 60221213 its reverse (31212206), we get a palindrome (91433419).

The spelling of 60221213 in words is "sixty million, two hundred twenty-one thousand, two hundred thirteen".

Divisors: 1 13 61 793 75941 987233 4632401 60221213