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149828923 = 237389237
BaseRepresentation
bin10001110111000…
…11010100111011
3101102221002122101
420323203110323
5301324011143
622511204231
73466345006
oct1073432473
9342832571
10149828923
1177635762
1242216677
132506c08a
1415c8253d
15d248b4d
hex8ee353b

149828923 has 8 divisors (see below), whose sum is σ = 158486688. Its totient is φ = 141349824.

The previous prime is 149828911. The next prime is 149828963. The reversal of 149828923 is 329828941.

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 149828923 - 29 = 149828411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149828963) 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, 42940 + ... + 46297.

It is an arithmetic number, because the mean of its divisors is an integer number (19810836).

Almost surely, 2149828923 is an apocalyptic number.

149828923 is a deficient number, since it is larger than the sum of its proper divisors (8657765).

149828923 is an equidigital number, since it uses as much as digits as its factorization.

149828923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89333.

The product of its digits is 248832, while the sum is 46.

The square root of 149828923 is about 12240.4625321105. The cubic root of 149828923 is about 531.1272117051.

The spelling of 149828923 in words is "one hundred forty-nine million, eight hundred twenty-eight thousand, nine hundred twenty-three".

Divisors: 1 23 73 1679 89237 2052451 6514301 149828923