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205146152 = 2338965921
BaseRepresentation
bin11000011101001…
…00100000101000
3112022000111121122
430032210200220
5410004134102
632204554412
75040466511
oct1416444050
9468014548
10205146152
11a5888382
1258852a08
1333669773
141d361a08
15130240a2
hexc3a4828

205146152 has 16 divisors (see below), whose sum is σ = 385643700. Its totient is φ = 102307840.

The previous prime is 205146121. The next prime is 205146181. The reversal of 205146152 is 251641502.

It can be written as a sum of positive squares in 2 ways, for example, as 170406916 + 34739236 = 13054^2 + 5894^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29849 + ... + 36072.

Almost surely, 2205146152 is an apocalyptic number.

It is an amenable number.

205146152 is a deficient number, since it is larger than the sum of its proper divisors (180497548).

205146152 is a wasteful number, since it uses less digits than its factorization.

205146152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66316 (or 66312 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 205146152 is about 14322.9240031496. The cubic root of 205146152 is about 589.7769452720.

Adding to 205146152 its reverse (251641502), we get a palindrome (456787654).

The spelling of 205146152 in words is "two hundred five million, one hundred forty-six thousand, one hundred fifty-two".

Divisors: 1 2 4 8 389 778 1556 3112 65921 131842 263684 527368 25643269 51286538 102573076 205146152