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29980481361 = 361191857737
BaseRepresentation
bin11011111010111110…
…011101011101010001
32212101101120020211120
4123322332131131101
5442400000400421
621434533432453
72110641613125
oct337276353521
985341506746
1029980481361
1111795222426
12598849b729
132a9a31cacc
141645a07585
15ba70708c6
hex6faf9d751

29980481361 has 16 divisors (see below), whose sum is σ = 40842052608. Its totient is φ = 19556380800.

The previous prime is 29980481353. The next prime is 29980481369. The reversal of 29980481361 is 16318408992.

It is an interprime number because it is at equal distance from previous prime (29980481353) and next prime (29980481369).

It is not a de Polignac number, because 29980481361 - 23 = 29980481353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29980481369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393916 + ... + 463821.

It is an arithmetic number, because the mean of its divisors is an integer number (2552628288).

Almost surely, 229980481361 is an apocalyptic number.

It is an amenable number.

29980481361 is a deficient number, since it is larger than the sum of its proper divisors (10861571247).

29980481361 is a wasteful number, since it uses less digits than its factorization.

29980481361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857992.

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 29980481361 in words is "twenty-nine billion, nine hundred eighty million, four hundred eighty-one thousand, three hundred sixty-one".

Divisors: 1 3 61 183 191 573 11651 34953 857737 2573211 52321957 156965871 163827767 491483301 9993493787 29980481361