Search a number
-
+
30402811550 = 252608056231
BaseRepresentation
bin11100010100001001…
…100001011010011110
32220110211020211221102
4130110021201122132
5444231104432200
621544501433102
72124260430356
oct342411413236
986424224842
1030402811550
111199165a341
125a85a0b792
132b3697c327
141685b41b66
15bce1956d5
hex71426169e

30402811550 has 12 divisors (see below), whose sum is σ = 56549229576. Its totient is φ = 12161124600.

The previous prime is 30402811541. The next prime is 30402811589. The reversal of 30402811550 is 5511820403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 304028066 + ... + 304028165.

It is an arithmetic number, because the mean of its divisors is an integer number (4712435798).

Almost surely, 230402811550 is an apocalyptic number.

30402811550 is a deficient number, since it is larger than the sum of its proper divisors (26146418026).

30402811550 is a wasteful number, since it uses less digits than its factorization.

30402811550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608056243 (or 608056238 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 30402811550 in words is "thirty billion, four hundred two million, eight hundred eleven thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 608056231 1216112462 3040281155 6080562310 15201405775 30402811550