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149804688 = 24311283721
BaseRepresentation
bin10001110110111…
…01011010010000
3101102212212101210
420323131122100
5301322222223
622510500120
73466214235
oct1073353220
9342785353
10149804688
1177619530
1242204640
1325061037
1415c7778c
15d241893
hex8edd690

149804688 has 40 divisors (see below), whose sum is σ = 422178336. Its totient is φ = 45395200.

The previous prime is 149804671. The next prime is 149804689. The reversal of 149804688 is 886408941.

149804688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (149804689) 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, 141333 + ... + 142388.

Almost surely, 2149804688 is an apocalyptic number.

It is an amenable number.

149804688 is an abundant number, since it is smaller than the sum of its proper divisors (272373648).

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

149804688 is a wasteful number, since it uses less digits than its factorization.

149804688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283743 (or 283737 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 149804688 is about 12239.4725376546. The cubic root of 149804688 is about 531.0985733492.

The spelling of 149804688 in words is "one hundred forty-nine million, eight hundred four thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 264 528 283721 567442 851163 1134884 1702326 2269768 3120931 3404652 4539536 6241862 6809304 9362793 12483724 13618608 18725586 24967448 37451172 49934896 74902344 149804688