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2025664160 = 255133726321
BaseRepresentation
bin111100010111101…
…0010111010100000
312020011122101211112
41320233102322200
513122032223120
6533001002452
7101124601262
oct17057227240
95204571745
102025664160
1194a486513
12486483428
13263891960
14153059b32
15bcc81bc5
hex78bd2ea0

2025664160 has 96 divisors (see below), whose sum is σ = 5293248912. Its totient is φ = 727695360.

The previous prime is 2025664153. The next prime is 2025664171. The reversal of 2025664160 is 614665202.

It can be written as a sum of positive squares in 8 ways, for example, as 1463215504 + 562448656 = 38252^2 + 23716^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 63800 + ... + 90120.

Almost surely, 22025664160 is an apocalyptic number.

2025664160 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 2025664160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2646624456).

2025664160 is an abundant number, since it is smaller than the sum of its proper divisors (3267584752).

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

2025664160 is a wasteful number, since it uses less digits than its factorization.

2025664160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26386 (or 26378 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 2025664160 is about 45007.3789505677. The cubic root of 2025664160 is about 1265.2872974608.

The spelling of 2025664160 in words is "two billion, twenty-five million, six hundred sixty-four thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 37 40 52 65 74 80 104 130 148 160 185 208 260 296 370 416 481 520 592 740 962 1040 1184 1480 1924 2080 2405 2960 3848 4810 5920 7696 9620 15392 19240 26321 38480 52642 76960 105284 131605 210568 263210 342173 421136 526420 684346 842272 973877 1052840 1368692 1710865 1947754 2105680 2737384 3421730 3895508 4211360 4869385 5474768 6843460 7791016 9738770 10949536 12660401 13686920 15582032 19477540 25320802 27373840 31164064 38955080 50641604 54747680 63302005 77910160 101283208 126604010 155820320 202566416 253208020 405132832 506416040 1012832080 2025664160