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149497628 = 2272762743
BaseRepresentation
bin10001110100100…
…10011100011100
3101102022021012012
420322102130130
5301232411003
622500130352
73463465100
oct1072223434
9342267165
10149497628
1177429865
12420969b8
1324c84347
1415bd7900
15d1d08d8
hex8e9271c

149497628 has 18 divisors (see below), whose sum is σ = 304334856. Its totient is φ = 64070328.

The previous prime is 149497597. The next prime is 149497637. The reversal of 149497628 is 826794941.

149497628 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 381176 + ... + 381567.

It is an arithmetic number, because the mean of its divisors is an integer number (16907492).

Almost surely, 2149497628 is an apocalyptic number.

It is an amenable number.

149497628 is an abundant number, since it is smaller than the sum of its proper divisors (154837228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149497628 is a wasteful number, since it uses less digits than its factorization.

149497628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762761 (or 762752 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 149497628 is about 12226.9222619595. The cubic root of 149497628 is about 530.7354545884.

The spelling of 149497628 in words is "one hundred forty-nine million, four hundred ninety-seven thousand, six hundred twenty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 762743 1525486 3050972 5339201 10678402 21356804 37374407 74748814 149497628