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30234746880 = 21334513701
BaseRepresentation
bin11100001010001000…
…011010000000000000
32220001010000021120000
4130022020122000000
5443410043400010
621520055320000
72120150052042
oct341210320000
986033007500
1030234746880
11119057a9918
125a39680000
132b0abc6b90
14166b6b3a92
15bbe5487c0
hex70a21a000

30234746880 has 560 divisors, whose sum is σ = 116894802024. Its totient is φ = 7431782400.

The previous prime is 30234746851. The next prime is 30234746917. The reversal of 30234746880 is 8864743203.

It can be written as a sum of positive squares in 4 ways, for example, as 24365961216 + 5868785664 = 156096^2 + 76608^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 43130530 + ... + 43131230.

Almost surely, 230234746880 is an apocalyptic number.

30234746880 is a gapful number since it is divisible by the number (30) 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 30234746880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58447401012).

30234746880 is an abundant number, since it is smaller than the sum of its proper divisors (86660055144).

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

30234746880 is an equidigital number, since it uses as much as digits as its factorization.

30234746880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 30234746880 in words is "thirty billion, two hundred thirty-four million, seven hundred forty-six thousand, eight hundred eighty".