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30298974208 = 21121296949
BaseRepresentation
bin11100001101111101…
…011010100000000000
32220012120212100212221
4130031331122200000
5444023014133313
621530312100424
72121560013526
oct341575324000
986176770787
1030298974208
1111938a87858
125a57094714
132b1b2c4009
141676032316
15bc4ed3c8d
hex70df5a800

30298974208 has 48 divisors (see below), whose sum is σ = 60620332500. Its totient is φ = 15140192256.

The previous prime is 30298974157. The next prime is 30298974221. The reversal of 30298974208 is 80247989203.

It can be written as a sum of positive squares in 2 ways, for example, as 30092534784 + 206439424 = 173472^2 + 14368^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4356718 + ... + 4363666.

Almost surely, 230298974208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30298974208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30310166250).

30298974208 is an abundant number, since it is smaller than the sum of its proper divisors (30321358292).

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

30298974208 is an equidigital number, since it uses as much as digits as its factorization.

30298974208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9100 (or 9080 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 30298974208 in words is "thirty billion, two hundred ninety-eight million, nine hundred seventy-four thousand, two hundred eight".

Divisors: 1 2 4 8 16 32 64 128 256 512 1024 2048 2129 4258 6949 8516 13898 17032 27796 34064 55592 68128 111184 136256 222368 272512 444736 545024 889472 1090048 1778944 2180096 3557888 4360192 7115776 14231552 14794421 29588842 59177684 118355368 236710736 473421472 946842944 1893685888 3787371776 7574743552 15149487104 30298974208