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258385132 = 22474493061
BaseRepresentation
bin11110110011010…
…10010011101100
3200000012022202201
433121222103230
51012121311012
641350031244
76255144265
oct1731522354
9600168681
10258385132
11122940635
1272648524
13416ba215
142645d96c
1517a3d857
hexf66a4ec

258385132 has 24 divisors (see below), whose sum is σ = 462974400. Its totient is φ = 126120960.

The previous prime is 258385103. The next prime is 258385133. The reversal of 258385132 is 231583852.

It is a junction number, because it is equal to n+sod(n) for n = 258385091 and 258385100.

It is not an unprimeable number, because it can be changed into a prime (258385133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82882 + ... + 85942.

It is an arithmetic number, because the mean of its divisors is an integer number (19290600).

Almost surely, 2258385132 is an apocalyptic number.

It is an amenable number.

258385132 is a deficient number, since it is larger than the sum of its proper divisors (204589268).

258385132 is a wasteful number, since it uses less digits than its factorization.

258385132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3561 (or 3559 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 258385132 is about 16074.3625690103. The cubic root of 258385132 is about 636.9262869734.

The spelling of 258385132 in words is "two hundred fifty-eight million, three hundred eighty-five thousand, one hundred thirty-two".

Divisors: 1 2 4 47 94 188 449 898 1796 3061 6122 12244 21103 42206 84412 143867 287734 575468 1374389 2748778 5497556 64596283 129192566 258385132