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76398205 = 5132414877
BaseRepresentation
bin1001000110110…
…11111001111101
312022202102122011
410203123321331
5124024220310
611325251221
71615242202
oct443337175
9168672564
1076398205
113a141114
1221703b11
1312a9bb50
14a209ca9
156a9178a
hex48dbe7d

76398205 has 16 divisors (see below), whose sum is σ = 99159984. Its totient is φ = 56171520.

The previous prime is 76398199. The next prime is 76398253. The reversal of 76398205 is 50289367.

It can be written as a sum of positive squares in 8 ways, for example, as 4674244 + 71723961 = 2162^2 + 8469^2 .

It is not a de Polignac number, because 76398205 - 29 = 76397693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13227 + ... + 18103.

It is an arithmetic number, because the mean of its divisors is an integer number (6197499).

Almost surely, 276398205 is an apocalyptic number.

It is an amenable number.

76398205 is a deficient number, since it is larger than the sum of its proper divisors (22761779).

76398205 is a wasteful number, since it uses less digits than its factorization.

76398205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5136.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 76398205 is about 8740.6066723083. The cubic root of 76398205 is about 424.3208622791.

The spelling of 76398205 in words is "seventy-six million, three hundred ninety-eight thousand, two hundred five".

Divisors: 1 5 13 65 241 1205 3133 4877 15665 24385 63401 317005 1175357 5876785 15279641 76398205