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2068918825 = 52373376637
BaseRepresentation
bin111101101010001…
…0011001000101001
312100012000222002011
41323110103020221
513214120400300
6541144035521
7102161343211
oct17324231051
95305028064
102068918825
1197193a376
12498a62ba1
1326c827a2c
14158ab9241
15c1977eba
hex7b513229

2068918825 has 24 divisors (see below), whose sum is σ = 2643012632. Its totient is φ = 1605381120.

The previous prime is 2068918807. The next prime is 2068918867. The reversal of 2068918825 is 5288198602.

It can be written as a sum of positive squares in 12 ways, for example, as 979126681 + 1089792144 = 31291^2 + 33012^2 .

It is not a de Polignac number, because 2068918825 - 27 = 2068918697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 308407 + ... + 315043.

Almost surely, 22068918825 is an apocalyptic number.

2068918825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2068918825 is a deficient number, since it is larger than the sum of its proper divisors (574093807).

2068918825 is a wasteful number, since it uses less digits than its factorization.

2068918825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7021 (or 7016 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 49.

The square root of 2068918825 is about 45485.3693510342. The cubic root of 2068918825 is about 1274.2299746179.

The spelling of 2068918825 in words is "two billion, sixty-eight million, nine hundred eighteen thousand, eight hundred twenty-five".

Divisors: 1 5 25 37 185 337 925 1685 6637 8425 12469 33185 62345 165925 245569 311725 1227845 2236669 6139225 11183345 55916725 82756753 413783765 2068918825