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2078709425 = 521317376237
BaseRepresentation
bin111101111100110…
…1001011010110001
312100212110101020222
41323321221122301
513224122200200
6542133542425
7102340511222
oct17371513261
95325411228
102078709425
11977417181
124a01a4a15
132718751a0
1415a107249
15c275dd85
hex7be696b1

2078709425 has 24 divisors (see below), whose sum is σ = 2939171256. Its totient is φ = 1444746240.

The previous prime is 2078709407. The next prime is 2078709427. The reversal of 2078709425 is 5249078702.

It can be written as a sum of positive squares in 12 ways, for example, as 156150016 + 1922559409 = 12496^2 + 43847^2 .

It is not a de Polignac number, because 2078709425 - 26 = 2078709361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2078709427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182594 + ... + 193643.

It is an arithmetic number, because the mean of its divisors is an integer number (122465469).

Almost surely, 22078709425 is an apocalyptic number.

2078709425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2078709425 is a deficient number, since it is larger than the sum of its proper divisors (860461831).

2078709425 is a wasteful number, since it uses less digits than its factorization.

2078709425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376277 (or 376272 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 2078709425 is about 45592.8659441365. The cubic root of 2078709425 is about 1276.2367955190.

The spelling of 2078709425 in words is "two billion, seventy-eight million, seven hundred nine thousand, four hundred twenty-five".

Divisors: 1 5 13 17 25 65 85 221 325 425 1105 5525 376237 1881185 4891081 6396029 9405925 24455405 31980145 83148377 122277025 159900725 415741885 2078709425