Search a number
-
+
30423322040 = 2353372256923
BaseRepresentation
bin11100010101010111…
…110000110110111000
32220112020211220001012
4130111113300312320
5444301332301130
621550513213052
72124626653616
oct342527606670
986466756035
1030423322040
11119a2199161
125a90861188
132b3acb0c07
1416887606b6
15bd0d97995
hex7155f0db8

30423322040 has 32 divisors (see below), whose sum is σ = 68655628080. Its totient is φ = 12133212672.

The previous prime is 30423321989. The next prime is 30423322057. The reversal of 30423322040 is 4022332403.

It is a junction number, because it is equal to n+sod(n) for n = 30423321997 and 30423322015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114982 + ... + 1141941.

Almost surely, 230423322040 is an apocalyptic number.

It is an amenable number.

30423322040 is an abundant number, since it is smaller than the sum of its proper divisors (38232306040).

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

30423322040 is a wasteful number, since it uses less digits than its factorization.

30423322040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257271 (or 2257267 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 30423322040 its reverse (4022332403), we get a palindrome (34445654443).

The spelling of 30423322040 in words is "thirty billion, four hundred twenty-three million, three hundred twenty-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 337 674 1348 1685 2696 3370 6740 13480 2256923 4513846 9027692 11284615 18055384 22569230 45138460 90276920 760583051 1521166102 3042332204 3802915255 6084664408 7605830510 15211661020 30423322040