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87201285407234 = 2312113970087377
BaseRepresentation
bin10011110100111100100001…
…101001000000001000000010
3102102202100202111211010201222
4103310330201221000020002
542412201213031012414
6505243414550555042
724240041100116525
oct2364744151001002
9372670674733658
1087201285407234
112586a948309109
12994423a068a82
133987079ba57bb
1417767c98b0bbc
15a1348b36868e
hex4f4f21a40202

87201285407234 has 8 divisors (see below), whose sum is σ = 130843838382348. Its totient is φ = 43586672613120.

The previous prime is 87201285407233. The next prime is 87201285407287. The reversal of 87201285407234 is 43270458210278.

It can be written as a sum of positive squares in 2 ways, for example, as 54889621015009 + 32311664392225 = 7408753^2 + 5684335^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (87201285407233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6985037447 + ... + 6985049930.

Almost surely, 287201285407234 is an apocalyptic number.

87201285407234 is a deficient number, since it is larger than the sum of its proper divisors (43642552975114).

87201285407234 is a wasteful number, since it uses less digits than its factorization.

87201285407234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13970090500.

The product of its (nonzero) digits is 6021120, while the sum is 53.

The spelling of 87201285407234 in words is "eighty-seven trillion, two hundred one billion, two hundred eighty-five million, four hundred seven thousand, two hundred thirty-four".

Divisors: 1 2 3121 6242 13970087377 27940174754 43600642703617 87201285407234