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148004917 = 682921673
BaseRepresentation
bin10001101001001…
…10000000110101
3101022111102120121
420310212000311
5300342124132
622404131541
73445010134
oct1064460065
9338442517
10148004917
11765aa315
1241696bb1
1324880a98
141592991b
15ced8497
hex8d26035

148004917 has 4 divisors (see below), whose sum is σ = 148033420. Its totient is φ = 147976416.

The previous prime is 148004891. The next prime is 148004929. The reversal of 148004917 is 719400841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 122744241 + 25260676 = 11079^2 + 5026^2 .

It is a cyclic number.

It is not a de Polignac number, because 148004917 - 27 = 148004789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148004947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4008 + ... + 17665.

It is an arithmetic number, because the mean of its divisors is an integer number (37008355).

Almost surely, 2148004917 is an apocalyptic number.

It is an amenable number.

148004917 is a deficient number, since it is larger than the sum of its proper divisors (28503).

148004917 is an equidigital number, since it uses as much as digits as its factorization.

148004917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28502.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 148004917 is about 12165.7271463731. The cubic root of 148004917 is about 528.9631050487.

The spelling of 148004917 in words is "one hundred forty-eight million, four thousand, nine hundred seventeen".

Divisors: 1 6829 21673 148004917