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207084154225 = 5213270012
BaseRepresentation
bin1100000011011100101…
…1010110110101110001
3201210112001101000011211
43000313023112311301
511343102020413400
6235044432040121
720650511160604
oct3006713266561
9653461330154
10207084154225
117a907674113
1234174093041
13166b2bab300
14a046ca633b
1555c0362dba
hex30372d6d71

207084154225 has 27 divisors (see below), whose sum is σ = 278096150019. Its totient is φ = 152901840000.

The previous prime is 207084154223. The next prime is 207084154231. The reversal of 207084154225 is 522451480702.

It is a happy number.

The square root of 207084154225 is 455065.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 200796298609 + 6287855616 = 448103^2 + 79296^2 .

It is not a de Polignac number, because 207084154225 - 21 = 207084154223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207084154223) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 29575725 + ... + 29582725.

Almost surely, 2207084154225 is an apocalyptic number.

207084154225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

207084154225 is the 455065-th square number.

207084154225 is the 227533-rd centered octagonal number.

It is an amenable number.

207084154225 is a deficient number, since it is larger than the sum of its proper divisors (71011995794).

207084154225 is an frugal number, since it uses more digits than its factorization.

207084154225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14038 (or 7019 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 40.

The spelling of 207084154225 in words is "two hundred seven billion, eighty-four million, one hundred fifty-four thousand, two hundred twenty-five".

Divisors: 1 5 13 25 65 169 325 845 4225 7001 35005 91013 175025 455065 1183169 2275325 5915845 29579225 49014001 245070005 637182013 1225350025 3185910065 8283366169 15929550325 41416830845 207084154225