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220132040 = 235291091741
BaseRepresentation
bin11010001111011…
…11001011001000
3120100012212101112
431013233023020
5422323211130
633502105452
75312043242
oct1507571310
9510185345
10220132040
11103293507
126187b288
13367b585b
1421343092
15144d4495
hexd1ef2c8

220132040 has 64 divisors (see below), whose sum is σ = 517374000. Its totient is φ = 84188160.

The previous prime is 220132039. The next prime is 220132061. The reversal of 220132040 is 40231022.

It can be written as a sum of positive squares in 8 ways, for example, as 42016324 + 178115716 = 6482^2 + 13346^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125570 + ... + 127310.

Almost surely, 2220132040 is an apocalyptic number.

220132040 is a gapful number since it is divisible by the number (20) 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 220132040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258687000).

220132040 is an abundant number, since it is smaller than the sum of its proper divisors (297241960).

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

220132040 is a wasteful number, since it uses less digits than its factorization.

220132040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890 (or 1886 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 220132040 is about 14836.8473740212. The cubic root of 220132040 is about 603.8018223274.

Adding to 220132040 its reverse (40231022), we get a palindrome (260363062).

The spelling of 220132040 in words is "two hundred twenty million, one hundred thirty-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 29 40 58 109 116 145 218 232 290 436 545 580 872 1090 1160 1741 2180 3161 3482 4360 6322 6964 8705 12644 13928 15805 17410 25288 31610 34820 50489 63220 69640 100978 126440 189769 201956 252445 379538 403912 504890 759076 948845 1009780 1518152 1897690 2019560 3795380 5503301 7590760 11006602 22013204 27516505 44026408 55033010 110066020 220132040