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90841121 = 722215843
BaseRepresentation
bin1010110101000…
…10000000100001
320022221012120222
411122202000201
5141223403441
613003012425
72152064630
oct532420041
9208835528
1090841121
1147306308
122650a115
1315a87a57
14c0c9517
157e95d4b
hex56a2021

90841121 has 8 divisors (see below), whose sum is σ = 103882944. Its totient is φ = 77815440.

The previous prime is 90841103. The next prime is 90841123. The reversal of 90841121 is 12114809.

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 90841121 - 226 = 23732257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90841123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12626 + ... + 18468.

It is an arithmetic number, because the mean of its divisors is an integer number (12985368).

Almost surely, 290841121 is an apocalyptic number.

It is an amenable number.

90841121 is a deficient number, since it is larger than the sum of its proper divisors (13041823).

90841121 is a wasteful number, since it uses less digits than its factorization.

90841121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8071.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 90841121 is about 9531.0608538609. The cubic root of 90841121 is about 449.5322233780.

The spelling of 90841121 in words is "ninety million, eight hundred forty-one thousand, one hundred twenty-one".

Divisors: 1 7 2221 5843 15547 40901 12977303 90841121