Search a number
-
+
30236123232 = 253478631931
BaseRepresentation
bin11100001010001101…
…101010000001100000
32220001012121012120000
4130022031222001200
5443410421420412
621520145020000
72120164543530
oct341215520140
986035535500
1030236123232
11119065599a7
125a3a024600
132b0b2894a3
14166b9514c0
15bbe71b4dc
hex70a36a060

30236123232 has 240 divisors, whose sum is σ = 101797420032. Its totient is φ = 8624413440.

The previous prime is 30236123213. The next prime is 30236123249. The reversal of 30236123232 is 23232163203.

30236123232 is a `hidden beast` number, since 3 + 0 + 23 + 612 + 3 + 23 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 30236123196 and 30236123205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15657307 + ... + 15659237.

Almost surely, 230236123232 is an apocalyptic number.

30236123232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30236123232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50898710016).

30236123232 is an abundant number, since it is smaller than the sum of its proper divisors (71561296800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30236123232 is a wasteful number, since it uses less digits than its factorization.

30236123232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823 (or 2806 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 30236123232 its reverse (23232163203), we get a palindrome (53468286435).

The spelling of 30236123232 in words is "thirty billion, two hundred thirty-six million, one hundred twenty-three thousand, two hundred thirty-two".