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149424155 = 579378289
BaseRepresentation
bin10001110100000…
…00100000011011
3101102011112101222
420322000200123
5301223033110
622454402255
73463040636
oct1072004033
9342145358
10149424155
1177389641
124206038b
1324c59a7a
1415bb8c1d
15d1b8c55
hex8e8081b

149424155 has 8 divisors (see below), whose sum is σ = 181579200. Its totient is φ = 118025856.

The previous prime is 149424133. The next prime is 149424157. The reversal of 149424155 is 551424941.

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 149424155 - 26 = 149424091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149424157) 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, 188750 + ... + 189539.

It is an arithmetic number, because the mean of its divisors is an integer number (22697400).

Almost surely, 2149424155 is an apocalyptic number.

149424155 is a deficient number, since it is larger than the sum of its proper divisors (32155045).

149424155 is an equidigital number, since it uses as much as digits as its factorization.

149424155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378373.

The product of its digits is 28800, while the sum is 35.

The square root of 149424155 is about 12223.9173344718. The cubic root of 149424155 is about 530.6484941986.

The spelling of 149424155 in words is "one hundred forty-nine million, four hundred twenty-four thousand, one hundred fifty-five".

Divisors: 1 5 79 395 378289 1891445 29884831 149424155