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248072390 = 2524807239
BaseRepresentation
bin11101100100101…
…00100011000110
3122021210101100022
432302110203012
51002001304030
640341015142
76101403056
oct1662244306
9567711308
10248072390
11118037505
126b0b44b2
133c5191c7
1424d37566
1516ba2de5
hexec948c6

248072390 has 8 divisors (see below), whose sum is σ = 446530320. Its totient is φ = 99228952.

The previous prime is 248072389. The next prime is 248072399. The reversal of 248072390 is 93270842.

248072390 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 248072390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248072399) 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 3 ways as a sum of consecutive naturals, for example, 12403610 + ... + 12403629.

It is an arithmetic number, because the mean of its divisors is an integer number (55816290).

Almost surely, 2248072390 is an apocalyptic number.

248072390 is a deficient number, since it is larger than the sum of its proper divisors (198457930).

248072390 is a wasteful number, since it uses less digits than its factorization.

248072390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24807246.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 248072390 is about 15750.3139651246. The cubic root of 248072390 is about 628.3372547855.

The spelling of 248072390 in words is "two hundred forty-eight million, seventy-two thousand, three hundred ninety".

Divisors: 1 2 5 10 24807239 49614478 124036195 248072390