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207255130 = 2537560149
BaseRepresentation
bin11000101101001…
…11011001011010
3112102222122120221
430112213121122
5411024131010
632322110254
75064432235
oct1426473132
9472878527
10207255130
11a6a98935
12594ab38a
1333c27694
141d75041c
15132dddda
hexc5a765a

207255130 has 16 divisors (see below), whose sum is σ = 383142600. Its totient is φ = 80661312.

The previous prime is 207255121. The next prime is 207255133. The reversal of 207255130 is 31552702.

It can be written as a sum of positive squares in 4 ways, for example, as 206985769 + 269361 = 14387^2 + 519^2 .

It is a super-2 number, since 2×2072551302 = 85909377822633800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 207255095 and 207255104.

It is not an unprimeable number, because it can be changed into a prime (207255133) 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, 279705 + ... + 280444.

Almost surely, 2207255130 is an apocalyptic number.

207255130 is a deficient number, since it is larger than the sum of its proper divisors (175887470).

207255130 is a wasteful number, since it uses less digits than its factorization.

207255130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560193.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 207255130 is about 14396.3582200500. The cubic root of 207255130 is about 591.7911002805.

The spelling of 207255130 in words is "two hundred seven million, two hundred fifty-five thousand, one hundred thirty".

Divisors: 1 2 5 10 37 74 185 370 560149 1120298 2800745 5601490 20725513 41451026 103627565 207255130