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215216454113 = 1171983318691
BaseRepresentation
bin1100100001101111100…
…1100111100111100001
3202120111210201122101222
43020123321213213201
512011230403012423
6242511415304425
721356156450663
oct3103371474741
9676453648358
10215216454113
1183300094411
123586367b115
13173aa96398b
14a5b8d6c533
1558e92933c8
hex321be679e1

215216454113 has 8 divisors (see below), whose sum is σ = 215433674016. Its totient is φ = 214999293600.

The previous prime is 215216454097. The next prime is 215216454119. The reversal of 215216454113 is 311454612512.

It is a happy number.

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 215216454113 - 24 = 215216454097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215216454119) 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, 11505098 + ... + 11523788.

It is an arithmetic number, because the mean of its divisors is an integer number (26929209252).

Almost surely, 2215216454113 is an apocalyptic number.

It is an amenable number.

215216454113 is a deficient number, since it is larger than the sum of its proper divisors (217219903).

215216454113 is a wasteful number, since it uses less digits than its factorization.

215216454113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29695.

The product of its digits is 28800, while the sum is 35.

The spelling of 215216454113 in words is "two hundred fifteen billion, two hundred sixteen million, four hundred fifty-four thousand, one hundred thirteen".

Divisors: 1 1171 9833 18691 11514443 21887161 183788603 215216454113