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90196441 = 175305673
BaseRepresentation
bin1010110000001…
…00100111011001
320021201110020221
411120010213121
5141042241231
612541120041
72143441246
oct530044731
9207643227
1090196441
1146a05a15
1226259021
13158c049a
14bd9c5cd
157db9d11
hex56049d9

90196441 has 4 divisors (see below), whose sum is σ = 95502132. Its totient is φ = 84890752.

The previous prime is 90196429. The next prime is 90196481. The reversal of 90196441 is 14469109.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14469109 = 37391057.

It can be written as a sum of positive squares in 2 ways, for example, as 65545216 + 24651225 = 8096^2 + 4965^2 .

It is a cyclic number.

It is not a de Polignac number, because 90196441 - 27 = 90196313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90196397 and 90196406.

It is not an unprimeable number, because it can be changed into a prime (90196411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2652820 + ... + 2652853.

It is an arithmetic number, because the mean of its divisors is an integer number (23875533).

Almost surely, 290196441 is an apocalyptic number.

It is an amenable number.

90196441 is a deficient number, since it is larger than the sum of its proper divisors (5305691).

90196441 is a wasteful number, since it uses less digits than its factorization.

90196441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5305690.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 90196441 is about 9497.1806869197. The cubic root of 90196441 is about 448.4662864749.

The spelling of 90196441 in words is "ninety million, one hundred ninety-six thousand, four hundred forty-one".

Divisors: 1 17 5305673 90196441