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148116457 = 197795603
BaseRepresentation
bin10001101010000…
…01001111101001
3101022201002120201
420311001033221
5300404211312
622410352201
73445653256
oct1065011751
9338632521
10148116457
11766760a5
124172b661
13248bc798
141595842d
15d00b557
hex8d413e9

148116457 has 4 divisors (see below), whose sum is σ = 155912080. Its totient is φ = 140320836.

The previous prime is 148116443. The next prime is 148116473. The reversal of 148116457 is 754611841.

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: 754611841 = 1495064509.

It is a cyclic number.

It is not a de Polignac number, because 148116457 - 211 = 148114409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148116497) 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, 3897783 + ... + 3897820.

It is an arithmetic number, because the mean of its divisors is an integer number (38978020).

Almost surely, 2148116457 is an apocalyptic number.

It is an amenable number.

148116457 is a deficient number, since it is larger than the sum of its proper divisors (7795623).

148116457 is an equidigital number, since it uses as much as digits as its factorization.

148116457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7795622.

The product of its digits is 26880, while the sum is 37.

The square root of 148116457 is about 12170.3104726215. The cubic root of 148116457 is about 529.0959513773.

The spelling of 148116457 in words is "one hundred forty-eight million, one hundred sixteen thousand, four hundred fifty-seven".

Divisors: 1 19 7795603 148116457