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90146363 = 479188197
BaseRepresentation
bin1010101111110…
…00011000111011
320021121220120012
411113320120323
5141034140423
612540052135
72143142246
oct527703073
9207556505
1090146363
114698132a
122623404b
13158a3758
14bd8825d
157daa078
hex55f863b

90146363 has 4 divisors (see below), whose sum is σ = 90335040. Its totient is φ = 89957688.

The previous prime is 90146339. The next prime is 90146377. The reversal of 90146363 is 36364109.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36364109 = 38993481.

It is a cyclic number.

It is not a de Polignac number, because 90146363 - 214 = 90129979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90146333) 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, 93620 + ... + 94577.

It is an arithmetic number, because the mean of its divisors is an integer number (22583760).

Almost surely, 290146363 is an apocalyptic number.

90146363 is a deficient number, since it is larger than the sum of its proper divisors (188677).

90146363 is a wasteful number, since it uses less digits than its factorization.

90146363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188676.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 90146363 is about 9494.5438542354. The cubic root of 90146363 is about 448.3832733978.

It can be divided in two parts, 90146 and 363, that added together give a palindrome (90509).

The spelling of 90146363 in words is "ninety million, one hundred forty-six thousand, three hundred sixty-three".

Divisors: 1 479 188197 90146363