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7420170245 = 52407761637
BaseRepresentation
bin1101110100100011…
…01101000000000101
3201011010100201000012
412322101231000011
5110144030421440
63224144000005
7351610256255
oct67221550005
921133321005
107420170245
113168546804
121531000005
1391338a2a7
14505691965
152d6663e65
hex1ba46d005

7420170245 has 8 divisors (see below), whose sum is σ = 8904718584. Its totient is φ = 5935793344.

The previous prime is 7420170239. The next prime is 7420170281. The reversal of 7420170245 is 5420710247.

It can be written as a sum of positive squares in 4 ways, for example, as 1202216929 + 6217953316 = 34673^2 + 78854^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7420170245 - 230 = 6346428421 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 89567 + ... + 151203.

It is an arithmetic number, because the mean of its divisors is an integer number (1113089823).

Almost surely, 27420170245 is an apocalyptic number.

It is an amenable number.

7420170245 is a deficient number, since it is larger than the sum of its proper divisors (1484548339).

7420170245 is a wasteful number, since it uses less digits than its factorization.

7420170245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85719.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 7420170245 is about 86140.4100582299. The cubic root of 7420170245 is about 1950.4640793327.

The spelling of 7420170245 in words is "seven billion, four hundred twenty million, one hundred seventy thousand, two hundred forty-five".

Divisors: 1 5 24077 61637 120385 308185 1484034049 7420170245