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248397393 = 31941157677
BaseRepresentation
bin11101100111000…
…11111001010001
3122022101220011110
432303203321101
51002042204033
640352003533
76104225436
oct1663437121
9568356143
10248397393
11118239702
126b2305a9
133c60110a
1424dbdb8d
1516c19363
hexece3e51

248397393 has 32 divisors (see below), whose sum is σ = 359936640. Its totient is φ = 151856640.

The previous prime is 248397377. The next prime is 248397419. The reversal of 248397393 is 393793842.

It is not a de Polignac number, because 248397393 - 24 = 248397377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (248397313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 366571 + ... + 367247.

It is an arithmetic number, because the mean of its divisors is an integer number (11248020).

Almost surely, 2248397393 is an apocalyptic number.

It is an amenable number.

248397393 is a deficient number, since it is larger than the sum of its proper divisors (111539247).

248397393 is a wasteful number, since it uses less digits than its factorization.

248397393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897.

The product of its digits is 979776, while the sum is 48.

The square root of 248397393 is about 15760.6279379979. The cubic root of 248397393 is about 628.6115327595.

The spelling of 248397393 in words is "two hundred forty-eight million, three hundred ninety-seven thousand, three hundred ninety-three".

Divisors: 1 3 19 41 57 123 157 471 677 779 2031 2337 2983 6437 8949 12863 19311 27757 38589 83271 106289 122303 318867 366909 527383 1582149 2019491 4357849 6058473 13073547 82799131 248397393