Search a number
-
+
30357042 = 235059507
BaseRepresentation
bin111001111001…
…1011000110010
32010010022000220
41303303120302
530232411132
63002353510
7516013332
oct163633062
963108026
1030357042
1116154771
12a1bb896
13639b661
1440630c2
1529e9a2c
hex1cf3632

30357042 has 8 divisors (see below), whose sum is σ = 60714096. Its totient is φ = 10119012.

The previous prime is 30357013. The next prime is 30357043. The reversal of 30357042 is 24075303.

It is a sphenic number, since it is the product of 3 distinct primes.

30357042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (30357043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2529748 + ... + 2529759.

It is an arithmetic number, because the mean of its divisors is an integer number (7589262).

Almost surely, 230357042 is an apocalyptic number.

30357042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30357042 is a wasteful number, since it uses less digits than its factorization.

30357042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5059512.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 30357042 is about 5509.7224975492. The cubic root of 30357042 is about 311.9510730313.

The spelling of 30357042 in words is "thirty million, three hundred fifty-seven thousand, forty-two".

Divisors: 1 2 3 6 5059507 10119014 15178521 30357042