Search a number
-
+
30587747352 = 2331774969969
BaseRepresentation
bin11100011111001010…
…111111110000011000
32220221201020120011120
4130133022333300120
51000120430403402
622015105325240
72131664363661
oct343712776030
986851216146
1030587747352
1111a76a93348
125b17936820
132b660909b6
1416a2522368
15be05263bc
hex71f2bfc18

30587747352 has 32 divisors (see below), whose sum is σ = 80967567600. Its totient is φ = 9596155904.

The previous prime is 30587747339. The next prime is 30587747371. The reversal of 30587747352 is 25374778503.

It is a super-3 number, since 3×305877473523 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 30587747295 and 30587747304.

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, 37484577 + ... + 37485392.

Almost surely, 230587747352 is an apocalyptic number.

It is an amenable number.

30587747352 is an abundant number, since it is smaller than the sum of its proper divisors (50379820248).

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

30587747352 is a wasteful number, since it uses less digits than its factorization.

30587747352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74969995 (or 74969991 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 51.

The spelling of 30587747352 in words is "thirty billion, five hundred eighty-seven million, seven hundred forty-seven thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 74969969 149939938 224909907 299879876 449819814 599759752 899639628 1274489473 1799279256 2548978946 3823468419 5097957892 7646936838 10195915784 15293873676 30587747352