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30832689888 = 253271113219433
BaseRepresentation
bin11100101101110001…
…011000001011100000
32221120210010221011100
4130231301120023200
51001121132034023
622055255314400
72141030353110
oct345561301340
987523127140
1030832689888
11120922822a0
125b8597ba00
132ba4a52400
1416c6c83040
15c06cabc43
hex72dc582e0

30832689888 has 864 divisors, whose sum is σ = 124889506560. Its totient is φ = 6987202560.

The previous prime is 30832689803. The next prime is 30832689911. The reversal of 30832689888 is 88898623803.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 71206920 + ... + 71207352.

It is an arithmetic number, because the mean of its divisors is an integer number (144548040).

Almost surely, 230832689888 is an apocalyptic number.

30832689888 is a gapful number since it is divisible by the number (38) 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 30832689888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62444753280).

30832689888 is an abundant number, since it is smaller than the sum of its proper divisors (94056816672).

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

30832689888 is a wasteful number, since it uses less digits than its factorization.

30832689888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 63.

The spelling of 30832689888 in words is "thirty billion, eight hundred thirty-two million, six hundred eighty-nine thousand, eight hundred eighty-eight".