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148816793 = 1724611117
BaseRepresentation
bin10001101111011…
…00001110011001
3101101000200021002
420313230032121
5301044114133
622433354345
73454631126
oct1067541631
9341020232
10148816793
1177004294
1241a089b5
1324aa6498
1415a9b74d
15d0e8ce8
hex8dec399

148816793 has 12 divisors (see below), whose sum is σ = 158570412. Its totient is φ = 139633920.

The previous prime is 148816783. The next prime is 148816799. The reversal of 148816793 is 397618841.

It can be written as a sum of positive squares in 6 ways, for example, as 1024144 + 147792649 = 1012^2 + 12157^2 .

It is not a de Polignac number, because 148816793 - 26 = 148816729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148816799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132671 + ... + 133787.

It is an arithmetic number, because the mean of its divisors is an integer number (13214201).

Almost surely, 2148816793 is an apocalyptic number.

It is an amenable number.

148816793 is a deficient number, since it is larger than the sum of its proper divisors (9753619).

148816793 is a wasteful number, since it uses less digits than its factorization.

148816793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612 (or 1595 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 148816793 is about 12199.0488563658. The cubic root of 148816793 is about 529.9285450126.

It can be divided in two parts, 1488 and 16793, that added together give a palindrome (18281).

The spelling of 148816793 in words is "one hundred forty-eight million, eight hundred sixteen thousand, seven hundred ninety-three".

Divisors: 1 17 289 461 1117 7837 18989 133229 322813 514937 8753929 148816793