Search a number
-
+
30152453031 = 3237211429137
BaseRepresentation
bin11100000101001110…
…011110101110100111
32212211101011022121200
4130011032132232213
5443223011444111
621503555413543
72115130423221
oct340516365647
985741138550
1030152453031
1111873301278
125a15bb42b3
132ac6b426ac
1416607b1411
15bb71e0256
hex70539eba7

30152453031 has 24 divisors (see below), whose sum is σ = 44942764464. Its totient is φ = 19465608960.

The previous prime is 30152452987. The next prime is 30152453057. The reversal of 30152453031 is 13035425103.

30152453031 is a `hidden beast` number, since 30 + 152 + 453 + 0 + 31 = 666.

It is not a de Polignac number, because 30152453031 - 211 = 30152450983 is a prime.

It is a super-2 number, since 2×301524530312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30152452986 and 30152453004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30152453081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144306 + ... + 284831.

It is an arithmetic number, because the mean of its divisors is an integer number (1872615186).

Almost surely, 230152453031 is an apocalyptic number.

30152453031 is a deficient number, since it is larger than the sum of its proper divisors (14790311433).

30152453031 is a wasteful number, since it uses less digits than its factorization.

30152453031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429391 (or 429388 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 30152453031 its reverse (13035425103), we get a palindrome (43187878134).

The spelling of 30152453031 in words is "thirty billion, one hundred fifty-two million, four hundred fifty-three thousand, thirty-one".

Divisors: 1 3 9 37 111 211 333 633 1899 7807 23421 70263 429137 1287411 3862233 15878069 47634207 90547907 142902621 271643721 814931163 3350272559 10050817677 30152453031