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149620384 = 2531150827
BaseRepresentation
bin10001110101100…
…00011010100000
3101102112111120201
420322300122200
5301300323014
622502514544
73464516014
oct1072603240
9342474521
10149620384
1177503011
1242135a54
1324cc8194
1415c2a544
15d206e74
hex8eb06a0

149620384 has 24 divisors (see below), whose sum is σ = 304069248. Its totient is φ = 72396480.

The previous prime is 149620381. The next prime is 149620397. The reversal of 149620384 is 483026941.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (149620381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74422 + ... + 76405.

It is an arithmetic number, because the mean of its divisors is an integer number (12669552).

Almost surely, 2149620384 is an apocalyptic number.

It is an amenable number.

149620384 is an abundant number, since it is smaller than the sum of its proper divisors (154448864).

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

149620384 is a wasteful number, since it uses less digits than its factorization.

149620384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150868 (or 150860 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 149620384 is about 12231.9411378571. The cubic root of 149620384 is about 530.8806812789.

The spelling of 149620384 in words is "one hundred forty-nine million, six hundred twenty thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 992 150827 301654 603308 1206616 2413232 4675637 4826464 9351274 18702548 37405096 74810192 149620384