Search a number
-
+
30703838 = 2111395629
BaseRepresentation
bin111010100100…
…0000011011110
32010202220202012
41311020003132
530330010323
63014031222
7521656364
oct165100336
963686665
1030703838
1116371280
12a348512
136490469
144113634
152a67678
hex1d480de

30703838 has 8 divisors (see below), whose sum is σ = 50242680. Its totient is φ = 13956280.

The previous prime is 30703817. The next prime is 30703847. The reversal of 30703838 is 83830703.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697793 + ... + 697836.

It is an arithmetic number, because the mean of its divisors is an integer number (6280335).

Almost surely, 230703838 is an apocalyptic number.

30703838 is a deficient number, since it is larger than the sum of its proper divisors (19538842).

30703838 is a wasteful number, since it uses less digits than its factorization.

30703838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395642.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 30703838 is about 5541.1044025537. The cubic root of 30703838 is about 313.1344779688.

The spelling of 30703838 in words is "thirty million, seven hundred three thousand, eight hundred thirty-eight".

Divisors: 1 2 11 22 1395629 2791258 15351919 30703838