Search a number
-
+
230157698 = 2115078849
BaseRepresentation
bin11011011011111…
…10110110000010
3121001002020000012
431231332312002
5432410021243
634501024522
75463210461
oct1555766602
9531066005
10230157698
11108a10981
12650b5142
13388b5cb4
14227d29d8
1515314d18
hexdb7ed82

230157698 has 4 divisors (see below), whose sum is σ = 345236550. Its totient is φ = 115078848.

The previous prime is 230157691. The next prime is 230157701. The reversal of 230157698 is 896751032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 208600249 + 21557449 = 14443^2 + 4643^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (230157691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57539423 + ... + 57539426.

Almost surely, 2230157698 is an apocalyptic number.

230157698 is a deficient number, since it is larger than the sum of its proper divisors (115078852).

230157698 is a wasteful number, since it uses less digits than its factorization.

230157698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115078851.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 230157698 is about 15170.9491463125. The cubic root of 230157698 is about 612.8325650859.

The spelling of 230157698 in words is "two hundred thirty million, one hundred fifty-seven thousand, six hundred ninety-eight".

Divisors: 1 2 115078849 230157698