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149921359 = 7187111447
BaseRepresentation
bin10001110111110…
…01111001001111
3101110002210102221
420323321321033
5301334440414
622513200211
73500211340
oct1073717117
9343083387
10149921359
1177699155
1242260067
13250a2183
1415ca80c7
15d266224
hex8ef9e4f

149921359 has 8 divisors (see below), whose sum is σ = 171445248. Its totient is φ = 128424120.

The previous prime is 149921311. The next prime is 149921377. The reversal of 149921359 is 953129941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149921359 - 213 = 149913167 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 (149921159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7374 + ... + 18820.

It is an arithmetic number, because the mean of its divisors is an integer number (21430656).

Almost surely, 2149921359 is an apocalyptic number.

149921359 is a deficient number, since it is larger than the sum of its proper divisors (21523889).

149921359 is a wasteful number, since it uses less digits than its factorization.

149921359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13325.

The product of its digits is 87480, while the sum is 43.

The square root of 149921359 is about 12244.2377876289. The cubic root of 149921359 is about 531.2364144346.

The spelling of 149921359 in words is "one hundred forty-nine million, nine hundred twenty-one thousand, three hundred fifty-nine".

Divisors: 1 7 1871 11447 13097 80129 21417337 149921359