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30665060051 = 191613950529
BaseRepresentation
bin11100100011110001…
…111010111011010011
32221011002201110020212
4130203301322323103
51000300223410201
622030510354335
72133623465303
oct344361727323
987132643225
1030665060051
111200669953a
125b397bb9ab
132b790bcb62
1416ac8c9603
15be71e8abb
hex723c7aed3

30665060051 has 4 divisors (see below), whose sum is σ = 32279010600. Its totient is φ = 29051109504.

The previous prime is 30665059981. The next prime is 30665060053. The reversal of 30665060051 is 15006056603.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30665060051 - 222 = 30660865747 is a prime.

It is a super-2 number, since 2×306650600512 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30665060053) 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, 806975246 + ... + 806975283.

It is an arithmetic number, because the mean of its divisors is an integer number (8069752650).

Almost surely, 230665060051 is an apocalyptic number.

30665060051 is a deficient number, since it is larger than the sum of its proper divisors (1613950549).

30665060051 is a wasteful number, since it uses less digits than its factorization.

30665060051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613950548.

The product of its (nonzero) digits is 16200, while the sum is 32.

The spelling of 30665060051 in words is "thirty billion, six hundred sixty-five million, sixty thousand, fifty-one".

Divisors: 1 19 1613950529 30665060051