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149280097 = 232319103
BaseRepresentation
bin10001110010111…
…01010101100001
3101101220012210111
420321131111201
5301203430342
622451331321
73461600641
oct1071352541
9341805714
10149280097
11772a038a
1241bb0b41
1324c09325
1415b7c521
15d18b217
hex8e5d561

149280097 has 12 divisors (see below), whose sum is σ = 161104384. Its totient is φ = 138168360.

The previous prime is 149280083. The next prime is 149280101. The reversal of 149280097 is 790082941.

149280097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149280097 - 219 = 148755809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149280067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11848 + ... + 20950.

Almost surely, 2149280097 is an apocalyptic number.

It is an amenable number.

149280097 is a deficient number, since it is larger than the sum of its proper divisors (11824287).

149280097 is an equidigital number, since it uses as much as digits as its factorization.

149280097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9180 (or 9157 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 149280097 is about 12218.0234489872. The cubic root of 149280097 is about 530.4779087931.

The spelling of 149280097 in words is "one hundred forty-nine million, two hundred eighty thousand, ninety-seven".

Divisors: 1 23 31 529 713 9103 16399 209369 282193 4815487 6490439 149280097