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5691213 = 321157487
BaseRepresentation
bin10101101101011101001101
3101201010212200
4111231131031
52424104323
6321552113
766242313
oct25553515
911633780
105691213
113237990
121aa5639
1312435a8
14a820b3
15776443
hex56d74d

5691213 has 12 divisors (see below), whose sum is σ = 8968128. Its totient is φ = 3449160.

The previous prime is 5691211. The next prime is 5691247. The reversal of 5691213 is 3121965.

It is not a de Polignac number, because 5691213 - 21 = 5691211 is a prime.

It is a super-2 number, since 2×56912132 = 64779810822738, which contains 22 as substring.

5691213 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5691211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28645 + ... + 28842.

It is an arithmetic number, because the mean of its divisors is an integer number (747344).

Almost surely, 25691213 is an apocalyptic number.

It is an amenable number.

5691213 is a deficient number, since it is larger than the sum of its proper divisors (3276915).

5691213 is a wasteful number, since it uses less digits than its factorization.

5691213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57504 (or 57501 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 5691213 is about 2385.6263328527. The cubic root of 5691213 is about 178.5397599917.

The spelling of 5691213 in words is "five million, six hundred ninety-one thousand, two hundred thirteen".

Divisors: 1 3 9 11 33 99 57487 172461 517383 632357 1897071 5691213