Base | Representation |
---|---|
bin | 111011111111… |
… | …1001101100110 |
3 | 2012012000211222 |
4 | 1313333031212 |
5 | 31023012204 |
6 | 3042100342 |
7 | 531232532 |
oct | 167771546 |
9 | 65160758 |
10 | 31454054 |
11 | 16833995 |
12 | a64a6b2 |
13 | 6693a88 |
14 | 426abc2 |
15 | 2b64abe |
hex | 1dff366 |
31454054 has 4 divisors (see below), whose sum is σ = 47181084. Its totient is φ = 15727026.
The previous prime is 31454053. The next prime is 31454077. The reversal of 31454054 is 45045413.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45045413 = 7 ⋅6435059.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31454053) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7863512 + ... + 7863515.
It is an arithmetic number, because the mean of its divisors is an integer number (11795271).
Almost surely, 231454054 is an apocalyptic number.
31454054 is a deficient number, since it is larger than the sum of its proper divisors (15727030).
31454054 is a wasteful number, since it uses less digits than its factorization.
31454054 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15727029.
The product of its (nonzero) digits is 4800, while the sum is 26.
The square root of 31454054 is about 5608.3913914776. The cubic root of 31454054 is about 315.6643541296.
Adding to 31454054 its reverse (45045413), we get a palindrome (76499467).
The spelling of 31454054 in words is "thirty-one million, four hundred fifty-four thousand, fifty-four".
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