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29924948140 = 225972159023
BaseRepresentation
bin11011110111101010…
…100111100010101100
32212020112001212120121
4123313222213202230
5442241241320030
621425231254324
72106365601523
oct336752474254
985215055517
1029924948140
11117669424aa
12597197a3a4
132a8b978009
14163c4ad4ba
15ba225147a
hex6f7aa78ac

29924948140 has 36 divisors (see below), whose sum is σ = 63497329056. Its totient is φ = 11846502912.

The previous prime is 29924948129. The next prime is 29924948201. The reversal of 29924948140 is 4184942992.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108669 + ... + 267691.

It is an arithmetic number, because the mean of its divisors is an integer number (1763814696).

Almost surely, 229924948140 is an apocalyptic number.

29924948140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29924948140 is an abundant number, since it is smaller than the sum of its proper divisors (33572380916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29924948140 is a wasteful number, since it uses less digits than its factorization.

29924948140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159226 (or 159127 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 29924948140 in words is "twenty-nine billion, nine hundred twenty-four million, nine hundred forty-eight thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1940 9409 18818 37636 47045 94090 159023 188180 318046 636092 795115 1590230 3180460 15425231 30850462 61700924 77126155 154252310 308504620 1496247407 2992494814 5984989628 7481237035 14962474070 29924948140