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90533941 = 385323497
BaseRepresentation
bin1010110010101…
…11000000110101
320022100121012221
411121113000311
5141134041231
612552242341
72146345231
oct531270065
9208317187
1090533941
1147116543
12263a03b1
13159aaca4
14c0495c1
157e34d11
hex5657035

90533941 has 4 divisors (see below), whose sum is σ = 90561292. Its totient is φ = 90506592.

The previous prime is 90533939. The next prime is 90533953. The reversal of 90533941 is 14933509.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14933509 = 23649283.

It can be written as a sum of positive squares in 2 ways, for example, as 83356900 + 7177041 = 9130^2 + 2679^2 .

It is a cyclic number.

It is not a de Polignac number, because 90533941 - 21 = 90533939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90533897 and 90533906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90333941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7896 + ... + 15601.

It is an arithmetic number, because the mean of its divisors is an integer number (22640323).

Almost surely, 290533941 is an apocalyptic number.

It is an amenable number.

90533941 is a deficient number, since it is larger than the sum of its proper divisors (27351).

90533941 is a wasteful number, since it uses less digits than its factorization.

90533941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27350.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 90533941 is about 9514.9325273488. The cubic root of 90533941 is about 449.0249521932.

The spelling of 90533941 in words is "ninety million, five hundred thirty-three thousand, nine hundred forty-one".

Divisors: 1 3853 23497 90533941