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149902301 = 715920939
BaseRepresentation
bin10001110111101…
…01001111011101
3101110001211022002
420323311033131
5301333333201
622512532045
73500101643
oct1073651735
9343054262
10149902301
11776858aa
1242251025
13250965b3
1415ca1193
15d26076b
hex8ef53dd

149902301 has 4 divisors (see below), whose sum is σ = 149930400. Its totient is φ = 149874204.

The previous prime is 149902289. The next prime is 149902327. The reversal of 149902301 is 103209941.

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: 103209941 = 176071173.

It is a cyclic number.

It is not a de Polignac number, because 149902301 - 218 = 149640157 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 (149902331) 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, 3311 + ... + 17628.

It is an arithmetic number, because the mean of its divisors is an integer number (37482600).

Almost surely, 2149902301 is an apocalyptic number.

It is an amenable number.

149902301 is a deficient number, since it is larger than the sum of its proper divisors (28099).

149902301 is an equidigital number, since it uses as much as digits as its factorization.

149902301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28098.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 149902301 is about 12243.4595192699. The cubic root of 149902301 is about 531.2139032267.

The spelling of 149902301 in words is "one hundred forty-nine million, nine hundred two thousand, three hundred one".

Divisors: 1 7159 20939 149902301