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30682238 = 237614079
BaseRepresentation
bin111010100001…
…0110001111110
32010201211010012
41311002301332
530323312423
63013343222
7521536406
oct165026176
963654105
1030682238
1116357024
12a337b12
136483692
144109806
152a61078
hex1d42c7e

30682238 has 8 divisors (see below), whose sum is σ = 46046880. Its totient is φ = 15333280.

The previous prime is 30682199. The next prime is 30682243. The reversal of 30682238 is 83228603.

It is a happy number.

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

It is a Curzon number.

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, 5483 + ... + 9561.

It is an arithmetic number, because the mean of its divisors is an integer number (5755860).

Almost surely, 230682238 is an apocalyptic number.

30682238 is a deficient number, since it is larger than the sum of its proper divisors (15364642).

30682238 is a wasteful number, since it uses less digits than its factorization.

30682238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7842.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 30682238 is about 5539.1549897074. The cubic root of 30682238 is about 313.0610312180.

The spelling of 30682238 in words is "thirty million, six hundred eighty-two thousand, two hundred thirty-eight".

Divisors: 1 2 3761 4079 7522 8158 15341119 30682238