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132451488 = 253213172081
BaseRepresentation
bin1111110010100…
…00110010100000
3100020020020021200
413321100302200
5232401421423
621050521200
73165550641
oct771206240
9306206250
10132451488
1168846844
1238436200
1321596580
141383b6c8
15b964d43
hex7e50ca0

132451488 has 144 divisors (see below), whose sum is σ = 429699816. Its totient is φ = 38338560.

The previous prime is 132451441. The next prime is 132451513. The reversal of 132451488 is 884154231.

132451488 is a `hidden beast` number, since 132 + 4 + 514 + 8 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 101848464 + 30603024 = 10092^2 + 5532^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62608 + ... + 64688.

Almost surely, 2132451488 is an apocalyptic number.

132451488 is a gapful number since it is divisible by the number (18) 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 132451488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214849908).

132451488 is an abundant number, since it is smaller than the sum of its proper divisors (297248328).

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

132451488 is a wasteful number, since it uses less digits than its factorization.

132451488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127 (or 2116 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 132451488 is about 11508.7570136831. The cubic root of 132451488 is about 509.7441854311.

The spelling of 132451488 in words is "one hundred thirty-two million, four hundred fifty-one thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 16 17 18 24 26 32 34 36 39 48 51 52 68 72 78 96 102 104 117 136 144 153 156 204 208 221 234 272 288 306 312 408 416 442 468 544 612 624 663 816 884 936 1224 1248 1326 1632 1768 1872 1989 2081 2448 2652 3536 3744 3978 4162 4896 5304 6243 7072 7956 8324 10608 12486 15912 16648 18729 21216 24972 27053 31824 33296 35377 37458 49944 54106 63648 66592 70754 74916 81159 99888 106131 108212 141508 149832 162318 199776 212262 216424 243477 283016 299664 318393 324636 424524 432848 459901 486954 566032 599328 636786 649272 849048 865696 919802 973908 1132064 1273572 1298544 1379703 1698096 1839604 1947816 2547144 2597088 2759406 3396192 3679208 3895632 4139109 5094288 5518812 7358416 7791264 8278218 10188576 11037624 14716832 16556436 22075248 33112872 44150496 66225744 132451488