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148869113 = 306748539
BaseRepresentation
bin10001101111110…
…00111111111001
3101101010100000212
420313320333321
5301102302423
622434440505
73455236511
oct1067707771
9341110025
10148869113
117703a628
1241a33135
1324ac4243
1415ab2841
15d109578
hex8df8ff9

148869113 has 4 divisors (see below), whose sum is σ = 148920720. Its totient is φ = 148817508.

The previous prime is 148869089. The next prime is 148869131. The reversal of 148869113 is 311968841.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311968841 = 3110063511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-148869113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148869013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21203 + ... + 27336.

It is an arithmetic number, because the mean of its divisors is an integer number (37230180).

Almost surely, 2148869113 is an apocalyptic number.

It is an amenable number.

148869113 is a deficient number, since it is larger than the sum of its proper divisors (51607).

148869113 is an equidigital number, since it uses as much as digits as its factorization.

148869113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51606.

The product of its digits is 41472, while the sum is 41.

The square root of 148869113 is about 12201.1930973983. The cubic root of 148869113 is about 529.9906406322.

The spelling of 148869113 in words is "one hundred forty-eight million, eight hundred sixty-nine thousand, one hundred thirteen".

Divisors: 1 3067 48539 148869113