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30037113531 = 3219916771141
BaseRepresentation
bin11011111110010110…
…011111101010111011
32212112100010110120100
4123332112133222323
5443004000113111
621444315330443
72112230152365
oct337626375273
985470113510
1030037113531
1111814192a77
1259a3450a23
132aa8c8ab79
14164d349d35
15bac00a756
hex6fe59fabb

30037113531 has 12 divisors (see below), whose sum is σ = 43604969200. Its totient is φ = 19924114320.

The previous prime is 30037113529. The next prime is 30037113539. The reversal of 30037113531 is 13531173003.

30037113531 is a `hidden beast` number, since 300 + 3 + 7 + 1 + 1 + 353 + 1 = 666.

It is not a de Polignac number, because 30037113531 - 21 = 30037113529 is a prime.

It is a super-2 number, since 2×300371135312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30037113495 and 30037113504.

It is not an unprimeable number, because it can be changed into a prime (30037113539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8383780 + ... + 8387361.

Almost surely, 230037113531 is an apocalyptic number.

30037113531 is a deficient number, since it is larger than the sum of its proper divisors (13567855669).

30037113531 is a wasteful number, since it uses less digits than its factorization.

30037113531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16771346 (or 16771343 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 27.

Adding to 30037113531 its reverse (13531173003), we get a palindrome (43568286534).

The spelling of 30037113531 in words is "thirty billion, thirty-seven million, one hundred thirteen thousand, five hundred thirty-one".

Divisors: 1 3 9 199 597 1791 16771141 50313423 150940269 3337457059 10012371177 30037113531