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148145937 = 349381979
BaseRepresentation
bin10001101010010…
…00011100010001
3101022202121000120
420311020130101
5300411132222
622411140453
73446135232
oct1065103421
9338677016
10148145937
1176696265
1241744729
1324900024
1415965089
15d01515c
hex8d48711

148145937 has 4 divisors (see below), whose sum is σ = 197527920. Its totient is φ = 98763956.

The previous prime is 148145923. The next prime is 148145941. The reversal of 148145937 is 739541841.

It is a happy number.

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: 739541841 = 3246513947.

It is a cyclic number.

It is not a de Polignac number, because 148145937 - 28 = 148145681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148145917) 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, 24690987 + ... + 24690992.

It is an arithmetic number, because the mean of its divisors is an integer number (49381980).

Almost surely, 2148145937 is an apocalyptic number.

It is an amenable number.

148145937 is a deficient number, since it is larger than the sum of its proper divisors (49381983).

148145937 is an equidigital number, since it uses as much as digits as its factorization.

148145937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49381982.

The product of its digits is 120960, while the sum is 42.

The square root of 148145937 is about 12171.5215564859. The cubic root of 148145937 is about 529.1310514921.

The spelling of 148145937 in words is "one hundred forty-eight million, one hundred forty-five thousand, nine hundred thirty-seven".

Divisors: 1 3 49381979 148145937