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203042080 = 2551269013
BaseRepresentation
bin11000001101000…
…10110100100000
3112011001121101001
430012202310200
5403434321310
632051521344
75013554263
oct1406426440
9464047331
10203042080
11a468057a
1257bb9254
13330b0b57
141cd74cda
1512c5a93a
hexc1a2d20

203042080 has 24 divisors (see below), whose sum is σ = 479687292. Its totient is φ = 81216768.

The previous prime is 203042071. The next prime is 203042117. The reversal of 203042080 is 80240302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 202891536 + 150544 = 14244^2 + 388^2 .

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, 634347 + ... + 634666.

Almost surely, 2203042080 is an apocalyptic number.

203042080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203042080 is an abundant number, since it is smaller than the sum of its proper divisors (276645212).

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

203042080 is a wasteful number, since it uses less digits than its factorization.

203042080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269028 (or 1269020 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 203042080 is about 14249.2834907584. The cubic root of 203042080 is about 587.7536722547.

Adding to 203042080 its reverse (80240302), we get a palindrome (283282382).

The spelling of 203042080 in words is "two hundred three million, forty-two thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1269013 2538026 5076052 6345065 10152104 12690130 20304208 25380260 40608416 50760520 101521040 203042080