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40032054 = 2324351721
BaseRepresentation
bin1001100010110…
…1011100110110
32210022211122200
42120231130312
540222011204
63550005330
7664160346
oct230553466
983284580
1040032054
1120662747
12114a6846
1383a830a
145460d26
1537ab539
hex262d736

40032054 has 24 divisors (see below), whose sum is σ = 88754952. Its totient is φ = 13033440.

The previous prime is 40032053. The next prime is 40032079. The reversal of 40032054 is 45023004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40032053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25087 + ... + 26634.

It is an arithmetic number, because the mean of its divisors is an integer number (3698123).

Almost surely, 240032054 is an apocalyptic number.

40032054 is an abundant number, since it is smaller than the sum of its proper divisors (48722898).

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

40032054 is a wasteful number, since it uses less digits than its factorization.

40032054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51772 (or 51769 counting only the distinct ones).

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

The square root of 40032054 is about 6327.0889040695. The cubic root of 40032054 is about 342.0865175594.

Adding to 40032054 its reverse (45023004), we get a palindrome (85055058).

The spelling of 40032054 in words is "forty million, thirty-two thousand, fifty-four", and thus it is an eban number.

Divisors: 1 2 3 6 9 18 43 86 129 258 387 774 51721 103442 155163 310326 465489 930978 2224003 4448006 6672009 13344018 20016027 40032054