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30101009985 = 3251973395489
BaseRepresentation
bin11100000010001010…
…001111011001000001
32212200210100202000200
4130002022033121001
5443121324304420
621454521035413
72113634235414
oct340212173101
985623322020
1030101009985
1111847265362
125a00925b69
132ab92a0517
141657a1db7b
15bb292cb90
hex70228f641

30101009985 has 24 divisors (see below), whose sum is σ = 52439947560. Its totient is φ = 15972375552.

The previous prime is 30101009963. The next prime is 30101010109. The reversal of 30101009985 is 58990010103.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12752959041 + 17348050944 = 112929^2 + 131712^2 .

It is not a de Polignac number, because 30101009985 - 215 = 30100977217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1688880 + ... + 1706609.

It is an arithmetic number, because the mean of its divisors is an integer number (2184997815).

Almost surely, 230101009985 is an apocalyptic number.

It is an amenable number.

30101009985 is a deficient number, since it is larger than the sum of its proper divisors (22338937575).

30101009985 is a wasteful number, since it uses less digits than its factorization.

30101009985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395697 (or 3395694 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The spelling of 30101009985 in words is "thirty billion, one hundred one million, nine thousand, nine hundred eighty-five".

Divisors: 1 3 5 9 15 45 197 591 985 1773 2955 8865 3395489 10186467 16977445 30559401 50932335 152797005 668911333 2006733999 3344556665 6020201997 10033669995 30101009985