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90096791 = 471916953
BaseRepresentation
bin1010101111011…
…00010010010111
320021112101120012
411113230102113
5141031044131
612535030435
72142544601
oct527542227
9207471505
1090096791
1146948064
122620b41b
1315887015
14bd74171
157d9a52b
hex55ec497

90096791 has 4 divisors (see below), whose sum is σ = 92013792. Its totient is φ = 88179792.

The previous prime is 90096781. The next prime is 90096847. The reversal of 90096791 is 19769009.

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: 19769009 = 131520693.

It is a cyclic number.

It is not a de Polignac number, because 90096791 - 214 = 90080407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90096731) 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, 958430 + ... + 958523.

It is an arithmetic number, because the mean of its divisors is an integer number (23003448).

Almost surely, 290096791 is an apocalyptic number.

90096791 is a deficient number, since it is larger than the sum of its proper divisors (1917001).

90096791 is a wasteful number, since it uses less digits than its factorization.

90096791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917000.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 90096791 is about 9491.9329432945. The cubic root of 90096791 is about 448.3010688199.

The spelling of 90096791 in words is "ninety million, ninety-six thousand, seven hundred ninety-one".

Divisors: 1 47 1916953 90096791