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29988328073 = 1123599712069
BaseRepresentation
bin11011111011011100…
…011001001010001001
32212101221022220111112
4123323130121022021
5442404002444243
621435413540105
72111065403624
oct337334311211
985357286445
1029988328073
11117996a1810
12598b044635
132a9bb39532
141646a8adbb
15ba7ac0818
hex6fb719289

29988328073 has 32 divisors (see below), whose sum is σ = 34768051200. Its totient is φ = 25596049600.

The previous prime is 29988328001. The next prime is 29988328141. The reversal of 29988328073 is 37082388992.

It is not a de Polignac number, because 29988328073 - 212 = 29988323977 is a prime.

It is a super-2 number, since 2×299883280732 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is not an unprimeable number, because it can be changed into a prime (29988328873) 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 31 ways as a sum of consecutive naturals, for example, 14493083 + ... + 14495151.

It is an arithmetic number, because the mean of its divisors is an integer number (1086501600).

Almost surely, 229988328073 is an apocalyptic number.

29988328073 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

29988328073 is a deficient number, since it is larger than the sum of its proper divisors (4779723127).

29988328073 is a wasteful number, since it uses less digits than its factorization.

29988328073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133.

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 29988328073 in words is "twenty-nine billion, nine hundred eighty-eight million, three hundred twenty-eight thousand, seventy-three".

Divisors: 1 11 23 59 253 649 971 1357 2069 10681 14927 22333 22759 47587 57289 122071 245663 523457 630179 1317647 1342781 2008999 2807633 14494117 22098989 30883963 46206977 118530941 508276747 1303840351 2726211643 29988328073