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149484672 = 2732172449
BaseRepresentation
bin10001110100011…
…11010010000000
3101102021121102100
420322033102000
5301232002142
622455550400
73463412241
oct1072172200
9342247370
10149484672
1177420057
124208b400
1324c7b48c
1415bd2cc8
15d1cbb4c
hex8e8f480

149484672 has 144 divisors (see below), whose sum is σ = 457967250. Its totient is φ = 46792704.

The previous prime is 149484661. The next prime is 149484677. The reversal of 149484672 is 276484941.

149484672 is a `hidden beast` number, since 149 + 48 + 467 + 2 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 149230656 + 254016 = 12216^2 + 504^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (149484677) 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 17 ways as a sum of consecutive naturals, for example, 332704 + ... + 333152.

Almost surely, 2149484672 is an apocalyptic number.

149484672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149484672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228983625).

149484672 is an abundant number, since it is smaller than the sum of its proper divisors (308482578).

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

149484672 is a wasteful number, since it uses less digits than its factorization.

149484672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 471 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 149484672 is about 12226.3924360377. The cubic root of 149484672 is about 530.7201223335.

The spelling of 149484672 in words is "one hundred forty-nine million, four hundred eighty-four thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 64 68 72 96 102 128 136 144 153 192 204 272 288 289 306 384 408 449 544 576 578 612 816 867 898 1088 1152 1156 1224 1347 1632 1734 1796 2176 2312 2448 2601 2694 3264 3468 3592 4041 4624 4896 5202 5388 6528 6936 7184 7633 8082 9248 9792 10404 10776 13872 14368 15266 16164 18496 19584 20808 21552 22899 27744 28736 30532 32328 36992 41616 43104 45798 55488 57472 61064 64656 68697 83232 86208 91596 110976 122128 129312 129761 137394 166464 172416 183192 244256 258624 259522 274788 332928 366384 389283 488512 517248 519044 549576 732768 778566 977024 1038088 1099152 1167849 1465536 1557132 2076176 2198304 2335698 2931072 3114264 4152352 4396608 4671396 6228528 8304704 8793216 9342792 12457056 16609408 18685584 24914112 37371168 49828224 74742336 149484672