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88993039989 = 3737114534157
BaseRepresentation
bin101001011100001100…
…1100000011001110101
322111201002002211200010
41102320121200121311
52424224204234424
6104514405410433
76300221234040
oct1227031403165
9274632084603
1088993039989
1134818284137
12152b7709a19
138513319159
14444329bc57
1524acc73229
hex14b8660675

88993039989 has 16 divisors (see below), whose sum is σ = 139273536128. Its totient is φ = 49478755392.

The previous prime is 88993039987. The next prime is 88993039999. The reversal of 88993039989 is 98993039988.

It is not a de Polignac number, because 88993039989 - 21 = 88993039987 is a prime.

It is a super-2 number, since 2×889930399892 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88993039989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88993039987) 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 15 ways as a sum of consecutive naturals, for example, 57266302 + ... + 57267855.

It is an arithmetic number, because the mean of its divisors is an integer number (8704596008).

Almost surely, 288993039989 is an apocalyptic number.

It is an amenable number.

88993039989 is a deficient number, since it is larger than the sum of its proper divisors (50280496139).

88993039989 is a wasteful number, since it uses less digits than its factorization.

88993039989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114534204.

The product of its (nonzero) digits is 272097792, while the sum is 75.

Subtracting 88993039989 from its reverse (98993039988), we obtain a palindrome (9999999999).

The spelling of 88993039989 in words is "eighty-eight billion, nine hundred ninety-three million, thirty-nine thousand, nine hundred eighty-nine".

Divisors: 1 3 7 21 37 111 259 777 114534157 343602471 801739099 2405217297 4237763809 12713291427 29664346663 88993039989