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30000000160 = 2551314423077
BaseRepresentation
bin11011111100001000…
…111010110010100000
32212102202021220121001
4123330020322302200
5442420000001120
621440512041344
72111266536214
oct337410726240
985382256531
1030000000160
11117a5244169
125992b33254
132aa13951b0
141648448944
15ba8b28e0a
hex6fc23aca0

30000000160 has 48 divisors (see below), whose sum is σ = 76326928776. Its totient is φ = 11076922368.

The previous prime is 30000000139. The next prime is 30000000169. The reversal of 30000000160 is 6100000003.

It can be written as a sum of positive squares in 4 ways, for example, as 10901865744 + 19098134416 = 104412^2 + 138196^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (30000000169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7209459 + ... + 7213618.

Almost surely, 230000000160 is an apocalyptic number.

It is an amenable number.

30000000160 is an abundant number, since it is smaller than the sum of its proper divisors (46326928616).

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

30000000160 is a wasteful number, since it uses less digits than its factorization.

30000000160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14423105 (or 14423097 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 30000000160 its reverse (6100000003), we get a palindrome (36100000163).

The spelling of 30000000160 in words is "thirty billion, one hundred sixty", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 208 260 416 520 1040 2080 14423077 28846154 57692308 72115385 115384616 144230770 187500001 230769232 288461540 375000002 461538464 576923080 750000004 937500005 1153846160 1500000008 1875000010 2307692320 3000000016 3750000020 6000000032 7500000040 15000000080 30000000160