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132893440 = 285473
BaseRepresentation
bin1111110101111…
…00101100000000
3100021001200112021
413322330230000
5233010042230
621104211224
73202401301
oct772745400
9307050467
10132893440
1169018899
1238609b14
13216bc794
14139147a8
15ba00c7a
hex7ebcb00

132893440 has 72 divisors (see below), whose sum is σ = 325241280. Its totient is φ = 52026368.

The previous prime is 132893401. The next prime is 132893443. The reversal of 132893440 is 44398231.

It is a junction number, because it is equal to n+sod(n) for n = 132893396 and 132893405.

It is not an unprimeable number, because it can be changed into a prime (132893443) 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, 2827497 + ... + 2827543.

It is an arithmetic number, because the mean of its divisors is an integer number (4517240).

Almost surely, 2132893440 is an apocalyptic number.

132893440 is a gapful number since it is divisible by the number (10) 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 132893440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162620640).

132893440 is an abundant number, since it is smaller than the sum of its proper divisors (192347840).

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

132893440 is an frugal number, since it uses more digits than its factorization.

132893440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 132893440 is about 11527.9417070004. The cubic root of 132893440 is about 510.3105119198.

The spelling of 132893440 in words is "one hundred thirty-two million, eight hundred ninety-three thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 47 64 80 94 128 160 188 235 256 320 376 470 640 752 940 1280 1504 1880 2209 3008 3760 4418 6016 7520 8836 11045 12032 15040 17672 22090 30080 35344 44180 60160 70688 88360 103823 141376 176720 207646 282752 353440 415292 519115 565504 706880 830584 1038230 1413760 1661168 2076460 2827520 3322336 4152920 6644672 8305840 13289344 16611680 26578688 33223360 66446720 132893440