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30068922 = 2313389991
BaseRepresentation
bin111001010110…
…1000010111010
32002120122210210
41302231002322
530144201142
62552251550
7513403332
oct162550272
962518723
1030068922
1115a78254
12a0a0bb6
1362ca480
143dca0c2
15298e49c
hex1cad0ba

30068922 has 32 divisors (see below), whose sum is σ = 64995840. Its totient is φ = 9218880.

The previous prime is 30068891. The next prime is 30068923. The reversal of 30068922 is 22986003.

It is a self number, because there is not a number n which added to its sum of digits gives 30068922.

It is not an unprimeable number, because it can be changed into a prime (30068923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29847 + ... + 30837.

It is an arithmetic number, because the mean of its divisors is an integer number (2031120).

Almost surely, 230068922 is an apocalyptic number.

30068922 is an abundant number, since it is smaller than the sum of its proper divisors (34926918).

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

30068922 is a wasteful number, since it uses less digits than its factorization.

30068922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 30068922 is about 5483.5136545832. The cubic root of 30068922 is about 310.9610204694.

The spelling of 30068922 in words is "thirty million, sixty-eight thousand, nine hundred twenty-two".

Divisors: 1 2 3 6 13 26 39 78 389 778 991 1167 1982 2334 2973 5057 5946 10114 12883 15171 25766 30342 38649 77298 385499 770998 1156497 2312994 5011487 10022974 15034461 30068922