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149522027 = 689921673
BaseRepresentation
bin10001110100110…
…00011001101011
3101102100111122212
420322120121223
5301234201102
622500435335
73463626164
oct1072303153
9342314585
10149522027
1177446126
12420a8b4b
1324c92495
1415c0276b
15d1d7c52
hex8e9866b

149522027 has 4 divisors (see below), whose sum is σ = 149550600. Its totient is φ = 149493456.

The previous prime is 149522017. The next prime is 149522029. The reversal of 149522027 is 720225941.

149522027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-149522027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149521984 and 149522002.

It is not an unprimeable number, because it can be changed into a prime (149522029) 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, 3938 + ... + 17735.

It is an arithmetic number, because the mean of its divisors is an integer number (37387650).

Almost surely, 2149522027 is an apocalyptic number.

149522027 is a deficient number, since it is larger than the sum of its proper divisors (28573).

149522027 is an equidigital number, since it uses as much as digits as its factorization.

149522027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28572.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 149522027 is about 12227.9199784755. The cubic root of 149522027 is about 530.7643261946.

Adding to 149522027 its reverse (720225941), we get a palindrome (869747968).

The spelling of 149522027 in words is "one hundred forty-nine million, five hundred twenty-two thousand, twenty-seven".

Divisors: 1 6899 21673 149522027