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2385172669 = 111483146213
BaseRepresentation
bin1000111000101010…
…1101100010111101
320011020010022210111
42032022231202331
514341101011134
61032402310021
7113051430115
oct21612554275
96136108714
102385172669
111014405590
12566958311
132c01c6a99
14188ac0045
15de5e7c64
hex8e2ad8bd

2385172669 has 8 divisors (see below), whose sum is σ = 2603778912. Its totient is φ = 2166861840.

The previous prime is 2385172667. The next prime is 2385172681. The reversal of 2385172669 is 9662715832.

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

It is not a de Polignac number, because 2385172669 - 21 = 2385172667 is a prime.

It is a super-2 number, since 2×23851726692 = 11378097321889167122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2385172667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56794 + ... + 89419.

It is an arithmetic number, because the mean of its divisors is an integer number (325472364).

Almost surely, 22385172669 is an apocalyptic number.

It is an amenable number.

2385172669 is a deficient number, since it is larger than the sum of its proper divisors (218606243).

2385172669 is a wasteful number, since it uses less digits than its factorization.

2385172669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147707.

The product of its digits is 1088640, while the sum is 49.

The square root of 2385172669 is about 48838.2295850290. The cubic root of 2385172669 is about 1336.1030070234.

The spelling of 2385172669 in words is "two billion, three hundred eighty-five million, one hundred seventy-two thousand, six hundred sixty-nine".

Divisors: 1 11 1483 16313 146213 1608343 216833879 2385172669