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90062231 = 7109118037
BaseRepresentation
bin1010101111000…
…11110110010111
320021110122011012
411113203312113
5141023442411
612534202435
72142342050
oct527436627
9207418135
1090062231
11469240a6
12261b341b
131587437c
14bd65727
157d9018b
hex55e3d97

90062231 has 8 divisors (see below), whose sum is σ = 103873440. Its totient is φ = 76487328.

The previous prime is 90062207. The next prime is 90062233. The reversal of 90062231 is 13226009.

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

It is a cyclic number.

It is not a de Polignac number, because 90062231 - 210 = 90061207 is a prime.

It is a super-2 number, since 2×900622312 = 16222410905394722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90062197 and 90062206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90062233) 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 7 ways as a sum of consecutive naturals, for example, 58256 + ... + 59781.

It is an arithmetic number, because the mean of its divisors is an integer number (12984180).

Almost surely, 290062231 is an apocalyptic number.

90062231 is a deficient number, since it is larger than the sum of its proper divisors (13811209).

90062231 is a wasteful number, since it uses less digits than its factorization.

90062231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118153.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 90062231 is about 9490.1122754159. The cubic root of 90062231 is about 448.2437405984.

The spelling of 90062231 in words is "ninety million, sixty-two thousand, two hundred thirty-one".

Divisors: 1 7 109 763 118037 826259 12866033 90062231