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2068802660 = 225829124777
BaseRepresentation
bin111101101001111…
…0110110001100100
312100011211001201202
41323103312301210
513214103141120
6541141342032
7102160350431
oct17323666144
95304731652
102068802660
11971870071
12498a07918
1326c7b6bb2
14158a88b88
15c1953875
hex7b4f6c64

2068802660 has 24 divisors (see below), whose sum is σ = 4349761080. Its totient is φ = 826516224.

The previous prime is 2068802657. The next prime is 2068802663. The reversal of 2068802660 is 662088602.

It is an interprime number because it is at equal distance from previous prime (2068802657) and next prime (2068802663).

It can be written as a sum of positive squares in 4 ways, for example, as 373339684 + 1695462976 = 19322^2 + 41176^2 .

It is not an unprimeable number, because it can be changed into a prime (2068802663) 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, 45809 + ... + 78968.

It is an arithmetic number, because the mean of its divisors is an integer number (181240045).

Almost surely, 22068802660 is an apocalyptic number.

2068802660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2068802660 is an abundant number, since it is smaller than the sum of its proper divisors (2280958420).

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

2068802660 is a wasteful number, since it uses less digits than its factorization.

2068802660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125615 (or 125613 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 2068802660 is about 45484.0923840413. The cubic root of 2068802660 is about 1274.2061258176.

The spelling of 2068802660 in words is "two billion, sixty-eight million, eight hundred two thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 829 1658 3316 4145 8290 16580 124777 249554 499108 623885 1247770 2495540 103440133 206880266 413760532 517200665 1034401330 2068802660