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2102502080 = 2657938617
BaseRepresentation
bin111110101010001…
…1010001011000000
312102112020011122102
41331110122023000
513301220031310
6544343525532
7103046654450
oct17524321300
95375204572
102102502080
11989897a28
124a81598a8
13276785993
1415d33bd60
15c48ad8a5
hex7d51a2c0

2102502080 has 56 divisors (see below), whose sum is σ = 5721815328. Its totient is φ = 720857088.

The previous prime is 2102502041. The next prime is 2102502109. The reversal of 2102502080 is 802052012.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467069 + ... + 471548.

Almost surely, 22102502080 is an apocalyptic number.

2102502080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102502080 is an abundant number, since it is smaller than the sum of its proper divisors (3619313248).

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

2102502080 is an equidigital number, since it uses as much as digits as its factorization.

2102502080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938641 (or 938631 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2102502080 is about 45853.0487535998. The cubic root of 2102502080 is about 1281.0875522618.

Adding to 2102502080 its reverse (802052012), we get a palindrome (2904554092).

The spelling of 2102502080 in words is "two billion, one hundred two million, five hundred two thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 140 160 224 280 320 448 560 1120 2240 938617 1877234 3754468 4693085 6570319 7508936 9386170 13140638 15017872 18772340 26281276 30035744 32851595 37544680 52562552 60071488 65703190 75089360 105125104 131406380 150178720 210250208 262812760 300357440 420500416 525625520 1051251040 2102502080