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248630652 = 22326906407
BaseRepresentation
bin11101101000111…
…00110101111100
3122022211202010200
432310130311330
51002122140102
640401003500
76106216464
oct1664346574
9568752120
10248630652
11118388986
126b323590
133c68333a
1425040ba4
1516c6351c
hexed1cd7c

248630652 has 18 divisors (see below), whose sum is σ = 628483128. Its totient is φ = 82876872.

The previous prime is 248630651. The next prime is 248630663. The reversal of 248630652 is 256036842.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2486306522 = 123634402227890208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6906407 = 248630652 / (2 + 4 + 8 + 6 + 3 + 0 + 6 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248630651) 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 in 5 ways as a sum of consecutive naturals, for example, 3453168 + ... + 3453239.

Almost surely, 2248630652 is an apocalyptic number.

It is an amenable number.

248630652 is an abundant number, since it is smaller than the sum of its proper divisors (379852476).

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

248630652 is a wasteful number, since it uses less digits than its factorization.

248630652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6906417 (or 6906412 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 248630652 is about 15768.0262556859. The cubic root of 248630652 is about 628.8082382911.

The spelling of 248630652 in words is "two hundred forty-eight million, six hundred thirty thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 6906407 13812814 20719221 27625628 41438442 62157663 82876884 124315326 248630652