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1712052445505 = 51117306544753
BaseRepresentation
bin11000111010011110010…
…001110010000101000001
320001200002212201111021112
4120322132101302011001
5211022240411224010
63350301145333105
7234456153450443
oct30723621620501
96050085644245
101712052445505
11600093a77256
12237982a97195
13c55a470082c
145cc142dc493
152e80399da05
hex18e9e472141

1712052445505 has 8 divisors (see below), whose sum is σ = 2056302209832. Its totient is φ = 1368415772928.

The previous prime is 1712052445469. The next prime is 1712052445507. The reversal of 1712052445505 is 5055442502171.

It can be written as a sum of positive squares in 4 ways, for example, as 66127665409 + 1645924780096 = 257153^2 + 1282936^2 .

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 1712052445505 - 220 = 1712051396929 is a prime.

It is a super-2 number, since 2×17120524455052 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1712052445507) 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, 153266792 + ... + 153277961.

It is an arithmetic number, because the mean of its divisors is an integer number (257037776229).

Almost surely, 21712052445505 is an apocalyptic number.

It is an amenable number.

1712052445505 is a deficient number, since it is larger than the sum of its proper divisors (344249764327).

1712052445505 is a wasteful number, since it uses less digits than its factorization.

1712052445505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306545875.

The product of its (nonzero) digits is 280000, while the sum is 41.

Adding to 1712052445505 its reverse (5055442502171), we get a palindrome (6767494947676).

The spelling of 1712052445505 in words is "one trillion, seven hundred twelve billion, fifty-two million, four hundred forty-five thousand, five hundred five".

Divisors: 1 5 1117 5585 306544753 1532723765 342410489101 1712052445505