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40023054 = 2322223503
BaseRepresentation
bin1001100010101…
…1010000001110
32210022101022100
42120223100032
540221214204
63545455530
7664122201
oct230532016
983271270
1040023054
1120656a05
12114a15a6
1383a41a6
14545b938
1537a8a39
hex262b40e

40023054 has 12 divisors (see below), whose sum is σ = 86716656. Its totient is φ = 13341012.

The previous prime is 40023041. The next prime is 40023089. The reversal of 40023054 is 45032004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2223503 = 40023054 / (4 + 0 + 0 + 2 + 3 + 0 + 5 + 4).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1111734 + ... + 1111769.

It is an arithmetic number, because the mean of its divisors is an integer number (7226388).

Almost surely, 240023054 is an apocalyptic number.

40023054 is an abundant number, since it is smaller than the sum of its proper divisors (46693602).

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

40023054 is a wasteful number, since it uses less digits than its factorization.

40023054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223511 (or 2223508 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 40023054 is about 6326.3776365310. The cubic root of 40023054 is about 342.0608796925.

Adding to 40023054 its reverse (45032004), we get a palindrome (85055058).

It can be divided in two parts, 4002 and 3054, that added together give a square (7056 = 842).

The spelling of 40023054 in words is "forty million, twenty-three thousand, fifty-four".

Divisors: 1 2 3 6 9 18 2223503 4447006 6670509 13341018 20011527 40023054