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29980534257369 = 3219175324761739
BaseRepresentation
bin1101101000100011000110…
…00110000011011011011001
310221011002222222110120120100
412310101203012003123121
512412200113232213434
6143432511200450013
76213010405326033
oct664214306033331
9127132888416510
1029980534257369
119609744aa7553
123442518319909
1313961c9652447
147590cc016c53
1536ece0de1699
hex1b44631836d9

29980534257369 has 12 divisors (see below), whose sum is σ = 45584438052400. Its totient is φ = 18935074267704.

The previous prime is 29980534257347. The next prime is 29980534257371. The reversal of 29980534257369 is 96375243508992.

29980534257369 is a `hidden beast` number, since 2 + 9 + 9 + 8 + 0 + 5 + 3 + 4 + 257 + 369 = 666.

It is not a de Polignac number, because 29980534257369 - 217 = 29980534126297 is a prime.

It is a super-2 number, since 2×299805342573692 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29980534257297 and 29980534257306.

It is not an unprimeable number, because it can be changed into a prime (29980534257469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87662380699 + ... + 87662381040.

Almost surely, 229980534257369 is an apocalyptic number.

It is an amenable number.

29980534257369 is a deficient number, since it is larger than the sum of its proper divisors (15603903795031).

29980534257369 is a wasteful number, since it uses less digits than its factorization.

29980534257369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175324761764 (or 175324761761 counting only the distinct ones).

The product of its (nonzero) digits is 881798400, while the sum is 72.

The spelling of 29980534257369 in words is "twenty-nine trillion, nine hundred eighty billion, five hundred thirty-four million, two hundred fifty-seven thousand, three hundred sixty-nine".

Divisors: 1 3 9 19 57 171 175324761739 525974285217 1577922855651 3331170473041 9993511419123 29980534257369