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149683078 = 282191159
BaseRepresentation
bin10001110101111…
…11101110000110
3101102122200120201
420322333232012
5301304324303
622504121114
73465166546
oct1072775606
9342580521
10149683078
1177546126
124216619a
132501a88c
1415c45326
15d21a81d
hex8ebfb86

149683078 has 8 divisors (see below), whose sum is σ = 224800560. Its totient is φ = 74749560.

The previous prime is 149683073. The next prime is 149683099. The reversal of 149683078 is 870386941.

It is a happy number.

149683078 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149683073) by changing a digit.

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, 43938 + ... + 47221.

It is an arithmetic number, because the mean of its divisors is an integer number (28100070).

Almost surely, 2149683078 is an apocalyptic number.

149683078 is a deficient number, since it is larger than the sum of its proper divisors (75117482).

149683078 is an equidigital number, since it uses as much as digits as its factorization.

149683078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91982.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 149683078 is about 12234.5035861697. The cubic root of 149683078 is about 530.9548208778.

The spelling of 149683078 in words is "one hundred forty-nine million, six hundred eighty-three thousand, seventy-eight".

Divisors: 1 2 821 1642 91159 182318 74841539 149683078