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40554031 = 743134731
BaseRepresentation
bin1001101010110…
…0111000101111
32211022100200011
42122230320233
540340212111
64005114051
71001463220
oct232547057
984270604
1040554031
1120989931
12116b8927
13852ba8b
145559247
153861021
hex26ace2f

40554031 has 8 divisors (see below), whose sum is σ = 47425664. Its totient is φ = 33951960.

The previous prime is 40554013. The next prime is 40554053. The reversal of 40554031 is 13045504.

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

It is not a de Polignac number, because 40554031 - 29 = 40553519 is a prime.

It is a super-2 number, since 2×405540312 = 3289258860697922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40553993 and 40554011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40554071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67065 + ... + 67666.

It is an arithmetic number, because the mean of its divisors is an integer number (5928208).

Almost surely, 240554031 is an apocalyptic number.

40554031 is a deficient number, since it is larger than the sum of its proper divisors (6871633).

40554031 is a wasteful number, since it uses less digits than its factorization.

40554031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134781.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 40554031 is about 6368.2046920620. The cubic root of 40554031 is about 343.5669210892.

Adding to 40554031 its reverse (13045504), we get a palindrome (53599535).

The spelling of 40554031 in words is "forty million, five hundred fifty-four thousand, thirty-one".

Divisors: 1 7 43 301 134731 943117 5793433 40554031