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30031476664 = 2371263742437
BaseRepresentation
bin11011111110000000…
…111111011110111000
32212111221112002020111
4123332000333132320
5443001024223124
621443554434104
72112131224360
oct337600773670
985457462214
1030031476664
1111810a92a02
1259a1592934
132aa7a66247
14164c6bd9a0
15bab795494
hex6fe03f7b8

30031476664 has 32 divisors (see below), whose sum is σ = 64359773280. Its totient is φ = 12869311104.

The previous prime is 30031476659. The next prime is 30031476697. The reversal of 30031476664 is 46667413003.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686454 + ... + 728890.

It is an arithmetic number, because the mean of its divisors is an integer number (2011242915).

Almost surely, 230031476664 is an apocalyptic number.

It is an amenable number.

30031476664 is an abundant number, since it is smaller than the sum of its proper divisors (34328296616).

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

30031476664 is a wasteful number, since it uses less digits than its factorization.

30031476664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55087 (or 55083 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 40.

Adding to 30031476664 its reverse (46667413003), we get a palindrome (76698889667).

The spelling of 30031476664 in words is "thirty billion, thirty-one million, four hundred seventy-six thousand, six hundred sixty-four".

Divisors: 1 2 4 7 8 14 28 56 12637 25274 42437 50548 84874 88459 101096 169748 176918 297059 339496 353836 594118 707672 1188236 2376472 536276369 1072552738 2145105476 3753934583 4290210952 7507869166 15015738332 30031476664