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30400513252 = 228391567811
BaseRepresentation
bin11100010100000000…
…110000010011100100
32220110122221002021021
4130110000300103210
5444230012411002
621544340300524
72124232045654
oct342400602344
986418832237
1030400513252
111199032a61a
125a850a1744
132b363561a5
141685704364
15bcdd8e737
hex7140304e4

30400513252 has 12 divisors (see below), whose sum is σ = 53841873456. Its totient is φ = 15017120840.

The previous prime is 30400513229. The next prime is 30400513261. The reversal of 30400513252 is 25231500403.

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, 45783574 + ... + 45784237.

It is an arithmetic number, because the mean of its divisors is an integer number (4486822788).

Almost surely, 230400513252 is an apocalyptic number.

It is an amenable number.

30400513252 is a deficient number, since it is larger than the sum of its proper divisors (23441360204).

30400513252 is a wasteful number, since it uses less digits than its factorization.

30400513252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91567898 (or 91567896 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The spelling of 30400513252 in words is "thirty billion, four hundred million, five hundred thirteen thousand, two hundred fifty-two".

Divisors: 1 2 4 83 166 332 91567811 183135622 366271244 7600128313 15200256626 30400513252