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1148871385 = 51912093383
BaseRepresentation
bin100010001111010…
…0110001011011001
32222001210201021001
41010132212023121
54323102341020
6310000145001
740320150154
oct10436461331
92861721231
101148871385
1153a565092
12280908161
1315403246c
14ac820c9b
156acdb50a
hex447a62d9

1148871385 has 8 divisors (see below), whose sum is σ = 1451206080. Its totient is φ = 870723504.

The previous prime is 1148871379. The next prime is 1148871403. The reversal of 1148871385 is 5831788411.

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

It is a cyclic number.

It is not a de Polignac number, because 1148871385 - 219 = 1148347097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6046597 + ... + 6046786.

It is an arithmetic number, because the mean of its divisors is an integer number (181400760).

Almost surely, 21148871385 is an apocalyptic number.

It is an amenable number.

1148871385 is a deficient number, since it is larger than the sum of its proper divisors (302334695).

1148871385 is a wasteful number, since it uses less digits than its factorization.

1148871385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12093407.

The product of its digits is 215040, while the sum is 46.

The square root of 1148871385 is about 33895.0053105174. The cubic root of 1148871385 is about 1047.3467052955.

The spelling of 1148871385 in words is "one billion, one hundred forty-eight million, eight hundred seventy-one thousand, three hundred eighty-five".

Divisors: 1 5 19 95 12093383 60466915 229774277 1148871385