Search a number
-
+
247030088 = 2330878761
BaseRepresentation
bin11101011100101…
…10000101001000
3122012211102120112
432232112011020
51001214430323
640302413452
76056502224
oct1656260510
9565742515
10247030088
111174953a8
126a891288
133c242966
1424b45784
1516a49178
hexeb96148

247030088 has 8 divisors (see below), whose sum is σ = 463181430. Its totient is φ = 123515040.

The previous prime is 247030081. The next prime is 247030117. The reversal of 247030088 is 880030742.

It can be written as a sum of positive squares in only one way, i.e., 129914404 + 117115684 = 11398^2 + 10822^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2470300882 = 122047728754575488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247030081) 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 as a sum of consecutive naturals, namely, 15439373 + ... + 15439388.

Almost surely, 2247030088 is an apocalyptic number.

It is an amenable number.

247030088 is a deficient number, since it is larger than the sum of its proper divisors (216151342).

247030088 is a wasteful number, since it uses less digits than its factorization.

247030088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30878767 (or 30878763 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 247030088 is about 15717.1908431501. The cubic root of 247030088 is about 627.4560112654.

The spelling of 247030088 in words is "two hundred forty-seven million, thirty thousand, eighty-eight".

Divisors: 1 2 4 8 30878761 61757522 123515044 247030088