Search a number
-
+
30103519999 = 729715834001
BaseRepresentation
bin11100000010010011…
…110100001011111111
32212200222002021010011
4130002103310023333
5443123000114444
621455050524051
72113664461300
oct340223641377
985628067104
1030103519999
111184871a153
125a01736627
132ab996bb37
1416580b47a7
15bb2c76734
hex7024f42ff

30103519999 has 24 divisors (see below), whose sum is σ = 35410592448. Its totient is φ = 25514496000.

The previous prime is 30103519997. The next prime is 30103520011. The reversal of 30103519999 is 99991530103.

It is not a de Polignac number, because 30103519999 - 21 = 30103519997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30103519997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7521999 + ... + 7525999.

It is an arithmetic number, because the mean of its divisors is an integer number (1475441352).

Almost surely, 230103519999 is an apocalyptic number.

30103519999 is a deficient number, since it is larger than the sum of its proper divisors (5307072449).

30103519999 is a wasteful number, since it uses less digits than its factorization.

30103519999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5695 (or 5688 counting only the distinct ones).

The product of its (nonzero) digits is 295245, while the sum is 49.

The spelling of 30103519999 in words is "thirty billion, one hundred three million, five hundred nineteen thousand, nine hundred ninety-nine".

Divisors: 1 7 49 97 679 1583 4001 4753 11081 28007 77567 153551 196049 388097 1074857 2716679 6333583 7523999 19016753 44335081 310345567 614357551 4300502857 30103519999