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348436168938025 = 52725333272
BaseRepresentation
bin100111100111001101001111…
…0000100111001001000101001
31200200201011122201001210110221
41033032122132010321020221
5331132234233222004100
63233021211034410041
7133251453041415100
oct11716323604711051
91620634581053427
10348436168938025
11a1027a49720643
12330b531bb90921
1311c5650b36272c
1462085871c5037
152a439573bc01a
hex13ce69e139229

348436168938025 has 27 divisors (see below), whose sum is σ = 502602338728119. Its totient is φ = 238927210705680.

The previous prime is 348436168938019. The next prime is 348436168938037. The reversal of 348436168938025 is 520839861634843.

The square root of 348436168938025 is 18666445.

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

It can be written as a sum of positive squares in only one way, i.e., 125437020817689 + 222999148120336 = 11199867^2 + 14933156^2 .

It is not a de Polignac number, because 348436168938025 - 235 = 348401809199657 is a prime.

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 653058912 + ... + 653592238.

Almost surely, 2348436168938025 is an apocalyptic number.

348436168938025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

348436168938025 is the 18666445-th square number.

348436168938025 is the 9333223-rd centered octagonal number.

It is an amenable number.

348436168938025 is a deficient number, since it is larger than the sum of its proper divisors (154166169790094).

348436168938025 is an frugal number, since it uses more digits than its factorization.

348436168938025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066678 (or 533339 counting only the distinct ones).

The product of its (nonzero) digits is 716636160, while the sum is 70.

The spelling of 348436168938025 in words is "three hundred forty-eight trillion, four hundred thirty-six billion, one hundred sixty-eight million, nine hundred thirty-eight thousand, twenty-five".

Divisors: 1 5 7 25 35 49 175 245 1225 533327 2666635 3733289 13333175 18666445 26133023 93332225 130665115 653325575 284437688929 1422188444645 1991063822503 7110942223225 9955319112515 13937446757521 49776595562575 69687233787605 348436168938025