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345880485 = 32531247943
BaseRepresentation
bin10100100111011…
…011011110100101
3220002211112211100
4110213123132211
51202021133420
654153230313
711366635626
oct2447333645
9802745740
10345880485
11168271145
1297a02399
1356873112
1433d17a4d
1520573190
hex149db7a5

345880485 has 24 divisors (see below), whose sum is σ = 618868224. Its totient is φ = 178518240.

The previous prime is 345880439. The next prime is 345880499. The reversal of 345880485 is 584088543.

It is not a de Polignac number, because 345880485 - 27 = 345880357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 345880485.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122577 + ... + 125366.

It is an arithmetic number, because the mean of its divisors is an integer number (25786176).

Almost surely, 2345880485 is an apocalyptic number.

It is an amenable number.

345880485 is a deficient number, since it is larger than the sum of its proper divisors (272987739).

345880485 is a wasteful number, since it uses less digits than its factorization.

345880485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247985 (or 247982 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The square root of 345880485 is about 18597.8623771658. The cubic root of 345880485 is about 701.9540537781.

The spelling of 345880485 in words is "three hundred forty-five million, eight hundred eighty thousand, four hundred eighty-five".

Divisors: 1 3 5 9 15 31 45 93 155 279 465 1395 247943 743829 1239715 2231487 3719145 7686233 11157435 23058699 38431165 69176097 115293495 345880485