Search a number
-
+
30230157 = 336727457
BaseRepresentation
bin111001101010…
…0011010001101
32002212211222110
41303110122031
530214331112
62555534233
7514644366
oct163243215
962784873
1030230157
1116078401
12a15a379
136355989
14402cb6d
1529c213c
hex1cd468d

30230157 has 8 divisors (see below), whose sum is σ = 40418176. Its totient is φ = 20097792.

The previous prime is 30230153. The next prime is 30230183. The reversal of 30230157 is 75103203.

It is a happy number.

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

It is not a de Polignac number, because 30230157 - 22 = 30230153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30230153) 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 7 ways as a sum of consecutive naturals, for example, 12628 + ... + 14829.

It is an arithmetic number, because the mean of its divisors is an integer number (5052272).

Almost surely, 230230157 is an apocalyptic number.

It is an amenable number.

30230157 is a deficient number, since it is larger than the sum of its proper divisors (10188019).

30230157 is a wasteful number, since it uses less digits than its factorization.

30230157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27827.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 30230157 is about 5498.1957949858. The cubic root of 30230157 is about 311.5158397184.

The spelling of 30230157 in words is "thirty million, two hundred thirty thousand, one hundred fifty-seven".

Divisors: 1 3 367 1101 27457 82371 10076719 30230157