Search a number
-
+
30926994 = 237736357
BaseRepresentation
bin111010111111…
…0100010010010
32011012020212020
41311332202102
530404130434
63022512310
7523606110
oct165764222
964166766
1030926994
11165039aa
12a435696
13653abc7
144170ab0
152aad849
hex1d7e892

30926994 has 16 divisors (see below), whose sum is σ = 70690368. Its totient is φ = 8836272.

The previous prime is 30926993. The next prime is 30927007. The reversal of 30926994 is 49962903.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 736357 = 30926994 / (3 + 0 + 9 + 2 + 6 + 9 + 9 + 4).

It is not an unprimeable number, because it can be changed into a prime (30926993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368137 + ... + 368220.

It is an arithmetic number, because the mean of its divisors is an integer number (4418148).

Almost surely, 230926994 is an apocalyptic number.

30926994 is an abundant number, since it is smaller than the sum of its proper divisors (39763374).

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

30926994 is a wasteful number, since it uses less digits than its factorization.

30926994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736369.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 30926994 is about 5561.2043659625. The cubic root of 30926994 is about 313.8912696414.

The spelling of 30926994 in words is "thirty million, nine hundred twenty-six thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 7 14 21 42 736357 1472714 2209071 4418142 5154499 10308998 15463497 30926994