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149313001 = 197858579
BaseRepresentation
bin10001110011001…
…01010111101001
3101101221212221011
420321211113221
5301211004001
622452143521
73462065605
oct1071452751
9341855834
10149313001
1177313082
1242007ba1
1324c1b2b6
1415b8a505
15d195d51
hex8e655e9

149313001 has 4 divisors (see below), whose sum is σ = 157171600. Its totient is φ = 141454404.

The previous prime is 149312983. The next prime is 149313037. The reversal of 149313001 is 100313941.

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 149313001 - 29 = 149312489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149314001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3929271 + ... + 3929308.

It is an arithmetic number, because the mean of its divisors is an integer number (39292900).

Almost surely, 2149313001 is an apocalyptic number.

It is an amenable number.

149313001 is a deficient number, since it is larger than the sum of its proper divisors (7858599).

149313001 is an equidigital number, since it uses as much as digits as its factorization.

149313001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7858598.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 149313001 is about 12219.3699101058. The cubic root of 149313001 is about 530.5168815321.

Adding to 149313001 its reverse (100313941), we get a palindrome (249626942).

The spelling of 149313001 in words is "one hundred forty-nine million, three hundred thirteen thousand, one".

Divisors: 1 19 7858579 149313001