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149409206 = 2109768099
BaseRepresentation
bin10001110011111…
…00110110110110
3101102010202220022
420321330312312
5301222043311
622454205142
73462646232
oct1071746666
9342122808
10149409206
1177379391
12420537b2
1324c5301b
1415bb35c2
15d1b45db
hex8e7cdb6

149409206 has 8 divisors (see below), whose sum is σ = 224321400. Its totient is φ = 74635408.

The previous prime is 149409187. The next prime is 149409229. The reversal of 149409206 is 602904941.

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

It is a super-2 number, since 2×1494092062 = 44646221675100872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31856 + ... + 36243.

It is an arithmetic number, because the mean of its divisors is an integer number (28040175).

Almost surely, 2149409206 is an apocalyptic number.

149409206 is a deficient number, since it is larger than the sum of its proper divisors (74912194).

149409206 is a wasteful number, since it uses less digits than its factorization.

149409206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69198.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 149409206 is about 12223.3058539824. The cubic root of 149409206 is about 530.6307975308.

The spelling of 149409206 in words is "one hundred forty-nine million, four hundred nine thousand, two hundred six".

Divisors: 1 2 1097 2194 68099 136198 74704603 149409206