Search a number
-
+
69842864 = 2471347969
BaseRepresentation
bin1000010100110…
…11011110110000
311212102101101202
410022123132300
5120334432424
610532550332
71505440340
oct412333660
9155371352
1069842864
1136473a83
121b4823a8
1311615150
1493c0d20
1561e92ae
hex429b7b0

69842864 has 40 divisors (see below), whose sum is σ = 166551840. Its totient is φ = 27629568.

The previous prime is 69842849. The next prime is 69842867. The reversal of 69842864 is 46824896.

It is not an unprimeable number, because it can be changed into a prime (69842867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22529 + ... + 25440.

It is an arithmetic number, because the mean of its divisors is an integer number (4163796).

Almost surely, 269842864 is an apocalyptic number.

It is an amenable number.

69842864 is an abundant number, since it is smaller than the sum of its proper divisors (96708976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69842864 is a wasteful number, since it uses less digits than its factorization.

69842864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47997 (or 47991 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The square root of 69842864 is about 8357.2043172343. The cubic root of 69842864 is about 411.8199168993.

The spelling of 69842864 in words is "sixty-nine million, eight hundred forty-two thousand, eight hundred sixty-four".

Divisors: 1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 182 208 364 728 1456 47969 95938 191876 335783 383752 623597 671566 767504 1247194 1343132 2494388 2686264 4365179 4988776 5372528 8730358 9977552 17460716 34921432 69842864