Search a number
-
+
30227191994 = 2145310401649
BaseRepresentation
bin11100001001101011…
…100101100010111010
32220000120210110012102
4130021223211202322
5443401130120434
621515225343402
72120025615116
oct341153454272
986016713172
1030227191994
111190150980a
125a37037b62
132b0948022c
14166a6a8746
15bbda5507e
hex709ae58ba

30227191994 has 8 divisors (see below), whose sum is σ = 45371997300. Its totient is φ = 15103192896.

The previous prime is 30227191987. The next prime is 30227191999. The reversal of 30227191994 is 49919172203.

It can be written as a sum of positive squares in 2 ways, for example, as 17780889025 + 12446302969 = 133345^2 + 111563^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30227191999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5197919 + ... + 5203730.

Almost surely, 230227191994 is an apocalyptic number.

30227191994 is a deficient number, since it is larger than the sum of its proper divisors (15144805306).

30227191994 is a wasteful number, since it uses less digits than its factorization.

30227191994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10403104.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 30227191994 in words is "thirty billion, two hundred twenty-seven million, one hundred ninety-one thousand, nine hundred ninety-four".

Divisors: 1 2 1453 2906 10401649 20803298 15113595997 30227191994