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30985740801 = 3231334731699
BaseRepresentation
bin11100110110111001…
…001110001000000001
32221222110010201112200
4130312321032020001
51001424322201201
622122403543413
72144566310511
oct346671161001
987873121480
1030985740801
1112160708754
12600908ab69
132bca67bb92
1416dd323841
15c15440386
hex736e4e201

30985740801 has 24 divisors (see below), whose sum is σ = 45030991200. Its totient is φ = 20531174976.

The previous prime is 30985740787. The next prime is 30985740803. The reversal of 30985740801 is 10804758903.

It is not a de Polignac number, because 30985740801 - 210 = 30985739777 is a prime.

It is a super-2 number, since 2×309857408012 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30985740803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 961650 + ... + 993348.

It is an arithmetic number, because the mean of its divisors is an integer number (1876291300).

Almost surely, 230985740801 is an apocalyptic number.

It is an amenable number.

30985740801 is a deficient number, since it is larger than the sum of its proper divisors (14045250399).

30985740801 is a wasteful number, since it uses less digits than its factorization.

30985740801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32365 (or 32362 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 30985740801 in words is "thirty billion, nine hundred eighty-five million, seven hundred forty thousand, eight hundred one".

Divisors: 1 3 9 313 347 939 1041 2817 3123 31699 95097 108611 285291 325833 977499 9921787 10999553 29765361 32998659 89296083 98995977 3442860089 10328580267 30985740801