Search a number
-
+
30074432790 = 2351432369991
BaseRepresentation
bin11100000000100100…
…110110110100010110
32212121221100110222010
4130000210312310112
5443043023322130
621452131245050
72113162314033
oct340044666426
985557313863
1030074432790
1111833262536
1259b3a49786
132ab392647c
1416542a238a
15bb042d0b0
hex700936d16

30074432790 has 32 divisors (see below), whose sum is σ = 72184709376. Its totient is φ = 8019174240.

The previous prime is 30074432771. The next prime is 30074432807. The reversal of 30074432790 is 9723447003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394695 + ... + 464685.

It is an arithmetic number, because the mean of its divisors is an integer number (2255772168).

Almost surely, 230074432790 is an apocalyptic number.

30074432790 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30074432790 is an abundant number, since it is smaller than the sum of its proper divisors (42110276586).

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

30074432790 is a wasteful number, since it uses less digits than its factorization.

30074432790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84324.

The product of its (nonzero) digits is 127008, while the sum is 39.

Adding to 30074432790 its reverse (9723447003), we get a palindrome (39797879793).

The spelling of 30074432790 in words is "thirty billion, seventy-four million, four hundred thirty-two thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 14323 28646 42969 69991 71615 85938 139982 143230 209973 214845 349955 419946 429690 699910 1049865 2099730 1002481093 2004962186 3007443279 5012405465 6014886558 10024810930 15037216395 30074432790