Search a number
-
+
30131021110 = 255875133053
BaseRepresentation
bin11100000011111100…
…101110010100110110
32212202212211110112211
4130003330232110312
5443202020133420
621501512204034
72114450311411
oct340374562466
985685743484
1030131021110
11118621a3143
125a0a99961a
132ac257a598
14165b9d2b78
15bb53a9e5a
hex703f2e536

30131021110 has 16 divisors (see below), whose sum is σ = 54328243536. Its totient is φ = 12031873888.

The previous prime is 30131021099. The next prime is 30131021143. The reversal of 30131021110 is 1112013103.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2560657 + ... + 2572396.

It is an arithmetic number, because the mean of its divisors is an integer number (3395515221).

Almost surely, 230131021110 is an apocalyptic number.

30131021110 is a deficient number, since it is larger than the sum of its proper divisors (24197222426).

30131021110 is a wasteful number, since it uses less digits than its factorization.

30131021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5133647.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 30131021110 its reverse (1112013103), we get a palindrome (31243034213).

The spelling of 30131021110 in words is "thirty billion, one hundred thirty-one million, twenty-one thousand, one hundred ten".

Divisors: 1 2 5 10 587 1174 2935 5870 5133053 10266106 25665265 51330530 3013102111 6026204222 15065510555 30131021110