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29908748613 = 320399488729
BaseRepresentation
bin11011110110101100…
…110100100101000101
32212012101120212000010
4123312230310211011
5442223114423423
621423452140433
72106111111552
oct336654644505
985171525003
1029908748613
1111758788567
125968467719
132a884c56b3
14163a293a29
15ba0b01693
hex6f6b34945

29908748613 has 8 divisors (see below), whose sum is σ = 39880368000. Its totient is φ = 19938147488.

The previous prime is 29908748603. The next prime is 29908748621. The reversal of 29908748613 is 31684780992.

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

It is a cyclic number.

It is not a de Polignac number, because 29908748613 - 220 = 29907700037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29908748603) 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 7 ways as a sum of consecutive naturals, for example, 183168 + ... + 305561.

It is an arithmetic number, because the mean of its divisors is an integer number (4985046000).

Almost surely, 229908748613 is an apocalyptic number.

It is an amenable number.

29908748613 is a deficient number, since it is larger than the sum of its proper divisors (9971619387).

29908748613 is a wasteful number, since it uses less digits than its factorization.

29908748613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509131.

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 29908748613 in words is "twenty-nine billion, nine hundred eight million, seven hundred forty-eight thousand, six hundred thirteen".

Divisors: 1 3 20399 61197 488729 1466187 9969582871 29908748613