Search a number
-
+
30121200001 = 291124392383
BaseRepresentation
bin11100000011010111…
…010000100110000001
32212202012100111112001
4130003113100212001
5443142011400001
621500521504001
72114300655424
oct340327204601
985665314461
1030121200001
11118576a5422
125a07642001
132ac051c289
14165a5979bb
15bb45ba001
hex7035d0981

30121200001 has 8 divisors (see below), whose sum is σ = 31162970880. Its totient is φ = 29079636432.

The previous prime is 30121199987. The next prime is 30121200029. The reversal of 30121200001 is 10000212103.

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 30121200001 - 27 = 30121199873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30121200071) 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, 279856 + ... + 372238.

It is an arithmetic number, because the mean of its divisors is an integer number (3895371360).

Almost surely, 230121200001 is an apocalyptic number.

It is an amenable number.

30121200001 is a deficient number, since it is larger than the sum of its proper divisors (1041770879).

30121200001 is a wasteful number, since it uses less digits than its factorization.

30121200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103655.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 30121200001 its reverse (10000212103), we get a palindrome (40121412104).

The spelling of 30121200001 in words is "thirty billion, one hundred twenty-one million, two hundred thousand, one".

Divisors: 1 29 11243 92383 326047 2679107 1038662069 30121200001