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149848940 = 22561122827
BaseRepresentation
bin10001110111010…
…00001101101100
3101102222010002202
420323220031230
5301330131230
622511441032
73466460243
oct1073501554
9342863082
10149848940
11776497aa
1242226178
1325078217
1415c8995a
15d24ea45
hex8ee836c

149848940 has 24 divisors (see below), whose sum is σ = 319844112. Its totient is φ = 58956480.

The previous prime is 149848921. The next prime is 149848969. The reversal of 149848940 is 49848941.

149848940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60194 + ... + 62633.

It is an arithmetic number, because the mean of its divisors is an integer number (13326838).

Almost surely, 2149848940 is an apocalyptic number.

149848940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149848940 is an abundant number, since it is smaller than the sum of its proper divisors (169995172).

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

149848940 is a wasteful number, since it uses less digits than its factorization.

149848940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122897 (or 122895 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 149848940 is about 12241.2801618131. The cubic root of 149848940 is about 531.1508633467.

Subtracting from 149848940 its reverse (49848941), we obtain a palindrome (99999999).

The spelling of 149848940 in words is "one hundred forty-nine million, eight hundred forty-eight thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 122827 245654 491308 614135 1228270 2456540 7492447 14984894 29969788 37462235 74924470 149848940