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31042454 = 228375471
BaseRepresentation
bin111011001101…
…0101110010110
32011102010020112
41312122232112
530421324304
63025203022
7524566532
oct166325626
964363215
1031042454
1116582723
12a490472
13657b621
1441a0bc2
152ad2b6e
hex1d9ab96

31042454 has 8 divisors (see below), whose sum is σ = 46588608. Its totient is φ = 15512920.

The previous prime is 31042421. The next prime is 31042457. The reversal of 31042454 is 45424013.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31042457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2939 + ... + 8409.

It is an arithmetic number, because the mean of its divisors is an integer number (5823576).

Almost surely, 231042454 is an apocalyptic number.

31042454 is a deficient number, since it is larger than the sum of its proper divisors (15546154).

31042454 is a wasteful number, since it uses less digits than its factorization.

31042454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8310.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 31042454 is about 5571.5755401861. The cubic root of 31042454 is about 314.2814021644.

Adding to 31042454 its reverse (45424013), we get a palindrome (76466467).

The spelling of 31042454 in words is "thirty-one million, forty-two thousand, four hundred fifty-four".

Divisors: 1 2 2837 5471 5674 10942 15521227 31042454