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29938241975 = 523732365667
BaseRepresentation
bin11011111000011101…
…010101000110110111
32212021110002021021212
4123320131111012313
5442303142220400
621430424232035
72106616600205
oct337035250667
985243067255
1029938241975
11117733a2344
12597630b61b
132a91650ba5
141640170075
15ba34ca335
hex6f87551b7

29938241975 has 12 divisors (see below), whose sum is σ = 38126756904. Its totient is φ = 23303279520.

The previous prime is 29938241941. The next prime is 29938241981. The reversal of 29938241975 is 57914283992.

It is a de Polignac number, because none of the positive numbers 2k-29938241975 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 16181909 + ... + 16183758.

It is an arithmetic number, because the mean of its divisors is an integer number (3177229742).

Almost surely, 229938241975 is an apocalyptic number.

29938241975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

29938241975 is a deficient number, since it is larger than the sum of its proper divisors (8188514929).

29938241975 is a wasteful number, since it uses less digits than its factorization.

29938241975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32365714 (or 32365709 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 59.

The spelling of 29938241975 in words is "twenty-nine billion, nine hundred thirty-eight million, two hundred forty-one thousand, nine hundred seventy-five".

Divisors: 1 5 25 37 185 925 32365667 161828335 809141675 1197529679 5987648395 29938241975