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30571664801 = 4110942116249
BaseRepresentation
bin11100011110001101…
…101001010110100001
32220220120222111001112
4130132031221112201
51000102321233201
622013332513105
72131410602036
oct343615512641
986816874045
1030571664801
1111a689a9287
125b1247b795
132b6294c6b2
1416a033738d
15bdddeb0bb
hex71e3695a1

30571664801 has 16 divisors (see below), whose sum is σ = 31681650000. Its totient is φ = 29480371200.

The previous prime is 30571664789. The next prime is 30571664833. The reversal of 30571664801 is 10846617503.

It can be written as a sum of positive squares in 8 ways, for example, as 6781687201 + 23789977600 = 82351^2 + 154240^2 .

It is a cyclic number.

It is not a de Polignac number, because 30571664801 - 210 = 30571663777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30571654801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1873325 + ... + 1889573.

It is an arithmetic number, because the mean of its divisors is an integer number (1980103125).

Almost surely, 230571664801 is an apocalyptic number.

It is an amenable number.

30571664801 is a deficient number, since it is larger than the sum of its proper divisors (1109985199).

30571664801 is a wasteful number, since it uses less digits than its factorization.

30571664801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16820.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 30571664801 in words is "thirty billion, five hundred seventy-one million, six hundred sixty-four thousand, eight hundred one".

Divisors: 1 41 109 421 4469 16249 17261 45889 666209 1771141 1881449 6840829 72616781 280473989 745650361 30571664801