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30919621199 = 172251807997
BaseRepresentation
bin11100110010111100…
…111111101001001111
32221210211201111111112
4130302330333221033
51001310410334244
622112042442235
72143134305135
oct346274775117
987724644445
1030919621199
1112127358055
125baab0337b
132bb9a6b65c
1416d4631755
15c0e72e39e
hex732f3fa4f

30919621199 has 8 divisors (see below), whose sum is σ = 32753006928. Its totient is φ = 29087856000.

The previous prime is 30919621193. The next prime is 30919621217. The reversal of 30919621199 is 99112691903.

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 30919621199 - 232 = 26624653903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30919621193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365732 + ... + 442265.

It is an arithmetic number, because the mean of its divisors is an integer number (4094125866).

Almost surely, 230919621199 is an apocalyptic number.

30919621199 is a deficient number, since it is larger than the sum of its proper divisors (1833385729).

30919621199 is a wasteful number, since it uses less digits than its factorization.

30919621199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810265.

The product of its (nonzero) digits is 236196, while the sum is 50.

The spelling of 30919621199 in words is "thirty billion, nine hundred nineteen million, six hundred twenty-one thousand, one hundred ninety-nine".

Divisors: 1 17 2251 38267 807997 13735949 1818801247 30919621199