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76090217 = 710870031
BaseRepresentation
bin1001000100100…
…00101101101001
312022011210011012
410202100231221
5123434341332
611314513305
71612520240
oct442205551
9168153135
1076090217
1139a50785
1221595835
13129c18c8
14a169957
156a303b2
hex4890b69

76090217 has 4 divisors (see below), whose sum is σ = 86960256. Its totient is φ = 65220180.

The previous prime is 76090169. The next prime is 76090253. The reversal of 76090217 is 71209067.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76090217 - 220 = 75041641 is a prime.

It is a super-2 number, since 2×760902172 = 11579442246214178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76090717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5435009 + ... + 5435022.

It is an arithmetic number, because the mean of its divisors is an integer number (21740064).

Almost surely, 276090217 is an apocalyptic number.

It is an amenable number.

76090217 is a deficient number, since it is larger than the sum of its proper divisors (10870039).

76090217 is a wasteful number, since it uses less digits than its factorization.

76090217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10870038.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 76090217 is about 8722.9706522492. The cubic root of 76090217 is about 423.7498988580.

The spelling of 76090217 in words is "seventy-six million, ninety thousand, two hundred seventeen".

Divisors: 1 7 10870031 76090217