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58311213 = 3157123803
BaseRepresentation
bin1101111001110…
…0001000101101
311001201111221120
43132130020231
5104411424323
65441451153
71305431352
oct336341055
9131644846
1058311213
112aa08094
1217640ab9
13c10839c
147a5c629
1551bc5e3
hex379c22d

58311213 has 8 divisors (see below), whose sum is σ = 78244128. Its totient is φ = 38626224.

The previous prime is 58311203. The next prime is 58311229. The reversal of 58311213 is 31211385.

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

It is not a de Polignac number, because 58311213 - 29 = 58310701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58311203) 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, 61431 + ... + 62372.

It is an arithmetic number, because the mean of its divisors is an integer number (9780516).

Almost surely, 258311213 is an apocalyptic number.

It is an amenable number.

58311213 is a deficient number, since it is larger than the sum of its proper divisors (19932915).

58311213 is a wasteful number, since it uses less digits than its factorization.

58311213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123963.

The product of its digits is 720, while the sum is 24.

The square root of 58311213 is about 7636.1779052089. The cubic root of 58311213 is about 387.7787668719.

Adding to 58311213 its reverse (31211385), we get a palindrome (89522598).

The spelling of 58311213 in words is "fifty-eight million, three hundred eleven thousand, two hundred thirteen".

Divisors: 1 3 157 471 123803 371409 19437071 58311213