Search a number
BaseRepresentation
bin11100001001110110…
…101011100010011001
32220000210021012101211
4130021312223202121
5443402401200441
621515411543121
72120062416454
oct341166534231
986023235354
1030230100121
1111903115721
125a37bbaaa1
132b09c5ab10
14166ac2449b
15bbde2ba81
hex709dab899

30230100121 has 8 divisors (see below), whose sum is σ = 33435371144. Its totient is φ = 27150526080.

The previous prime is 30230100107. The next prime is 30230100143. The reversal of 30230100121 is 12100103203.

Adding to 30230100121 its reverse (12100103203), we get a palindrome (42330203324).

30230100121 = T40405 + T40406 + ... + T40441.

It can be written as a sum of positive squares in 4 ways, for example, as 10803315721 + 19426784400 = 103939^2 + 139380^2 .

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 30230100121 - 231 = 28082616473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30230106121) 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, 31423740 + ... + 31424701.

It is an arithmetic number, because the mean of its divisors is an integer number (4179421393).

Almost surely, 230230100121 is an apocalyptic number.

It is an amenable number.

30230100121 is a deficient number, since it is larger than the sum of its proper divisors (3205271023).

30230100121 is a wasteful number, since it uses less digits than its factorization.

30230100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62848491.

The product of its (nonzero) digits is 36, while the sum is 13.

The spelling of 30230100121 in words is "thirty billion, two hundred thirty million, one hundred thousand, one hundred twenty-one".