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179880000445 = 5503222132203
BaseRepresentation
bin1010011110000110101…
…1101111101110111101
3122012022010221210210201
42213201223233232331
510421343240003240
6214345152403501
715665410530115
oct2474153575675
9565263853721
10179880000445
116a3176307a2
122aa41546591
1313c68b1a8b2
1489c5cc0045
154a2be02d9a
hex29e1aefbbd

179880000445 has 16 divisors (see below), whose sum is σ = 216389238912. Its totient is φ = 143548787520.

The previous prime is 179880000439. The next prime is 179880000481. The reversal of 179880000445 is 544000088971.

It is a de Polignac number, because none of the positive numbers 2k-179880000445 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 179880000395 and 179880000404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5569714 + ... + 5601916.

It is an arithmetic number, because the mean of its divisors is an integer number (13524327432).

Almost surely, 2179880000445 is an apocalyptic number.

It is an amenable number.

179880000445 is a deficient number, since it is larger than the sum of its proper divisors (36509238467).

179880000445 is a wasteful number, since it uses less digits than its factorization.

179880000445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34932.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 179880000445 in words is "one hundred seventy-nine billion, eight hundred eighty million, four hundred forty-five", and thus it is an aban number.

Divisors: 1 5 503 2221 2515 11105 32203 161015 1117163 5585815 16198109 71522863 80990545 357614315 35976000089 179880000445