Search a number
-
+
30255679472 = 241890979967
BaseRepresentation
bin11100001011011000…
…010000011111110000
32220002120101202200012
4130023120100133300
5443430423220342
621522124114052
72120523014024
oct341330203760
986076352605
1030255679472
11119165a6887
125a44695928
132b12345925
1416703a2384
15bc12d0b82
hex70b6107f0

30255679472 has 10 divisors (see below), whose sum is σ = 58620379008. Its totient is φ = 15127839728.

The previous prime is 30255679471. The next prime is 30255679507. The reversal of 30255679472 is 27497655203.

It is a super-2 number, since 2×302556794722 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30255679472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30255679471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 945489968 + ... + 945489999.

Almost surely, 230255679472 is an apocalyptic number.

It is an amenable number.

30255679472 is a deficient number, since it is larger than the sum of its proper divisors (28364699536).

30255679472 is a wasteful number, since it uses less digits than its factorization.

30255679472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890979975 (or 1890979969 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 30255679472 in words is "thirty billion, two hundred fifty-five million, six hundred seventy-nine thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 1890979967 3781959934 7563919868 15127839736 30255679472