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90742 = 259769
BaseRepresentation
bin10110001001110110
311121110211
4112021312
510400432
61540034
7525361
oct261166
9147424
1090742
11621a3
124461a
13323c2
14250d8
151bd47
hex16276

90742 has 8 divisors (see below), whose sum is σ = 138600. Its totient is φ = 44544.

The previous prime is 90731. The next prime is 90749. The reversal of 90742 is 24709.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×907422 = 16468221128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90749) by changing a digit.

90742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267 + ... + 502.

It is an arithmetic number, because the mean of its divisors is an integer number (17325).

290742 is an apocalyptic number.

90742 is a deficient number, since it is larger than the sum of its proper divisors (47858).

90742 is a wasteful number, since it uses less digits than its factorization.

90742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 90742 is about 301.2341282126. The cubic root of 90742 is about 44.9368661989.

It can be divided in two parts, 907 and 42, that added together give a palindrome (949).

The spelling of 90742 in words is "ninety thousand, seven hundred forty-two".

Divisors: 1 2 59 118 769 1538 45371 90742