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148406641 = 314787311
BaseRepresentation
bin10001101100010…
…00000101110001
3101100020211122021
420312020011301
5300443003031
622420511441
73451302265
oct1066100561
9340224567
10148406641
1176854119
124184b581
13249918a6
14159d20a5
15d067511
hex8d88171

148406641 has 4 divisors (see below), whose sum is σ = 153193984. Its totient is φ = 143619300.

The previous prime is 148406611. The next prime is 148406647. The reversal of 148406641 is 146604841.

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.

It is a cyclic number.

It is not a de Polignac number, because 148406641 - 27 = 148406513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148406597 and 148406606.

It is not an unprimeable number, because it can be changed into a prime (148406647) 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, 2393625 + ... + 2393686.

It is an arithmetic number, because the mean of its divisors is an integer number (38298496).

Almost surely, 2148406641 is an apocalyptic number.

It is an amenable number.

148406641 is a deficient number, since it is larger than the sum of its proper divisors (4787343).

148406641 is an equidigital number, since it uses as much as digits as its factorization.

148406641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4787342.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 148406641 is about 12182.2264385456. The cubic root of 148406641 is about 529.4412540419.

The spelling of 148406641 in words is "one hundred forty-eight million, four hundred six thousand, six hundred forty-one".

Divisors: 1 31 4787311 148406641