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91233042 = 2323661109
BaseRepresentation
bin1010111000000…
…01101100010010
320100200010012120
411130001230102
5141323424132
613015235110
72155316355
oct534015422
9210603176
1091233042
114755380a
1226678a96
1315b94264
14c18c29c
15802202c
hex5701b12

91233042 has 16 divisors (see below), whose sum is σ = 190399680. Its totient is φ = 29088752.

The previous prime is 91233017. The next prime is 91233049. The reversal of 91233042 is 24033219.

It is not an unprimeable number, because it can be changed into a prime (91233049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330417 + ... + 330692.

It is an arithmetic number, because the mean of its divisors is an integer number (11899980).

Almost surely, 291233042 is an apocalyptic number.

91233042 is an abundant number, since it is smaller than the sum of its proper divisors (99166638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91233042 is a wasteful number, since it uses less digits than its factorization.

91233042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661137.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 91233042 is about 9551.5989237405. The cubic root of 91233042 is about 450.1777766720.

The spelling of 91233042 in words is "ninety-one million, two hundred thirty-three thousand, forty-two".

Divisors: 1 2 3 6 23 46 69 138 661109 1322218 1983327 3966654 15205507 30411014 45616521 91233042