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54372331 = 134182487
BaseRepresentation
bin1100111101101…
…0011111101011
310210022101211001
43033122133223
5102404403311
65221215431
71230104626
oct317323753
9123271731
1054372331
1128767812
1216261577
13b3595a0
147314dbd
154b904c1
hex33da7eb

54372331 has 4 divisors (see below), whose sum is σ = 58554832. Its totient is φ = 50189832.

The previous prime is 54372317. The next prime is 54372337. The reversal of 54372331 is 13327345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13327345 = 52665469.

It is a cyclic number.

It is not a de Polignac number, because 54372331 - 217 = 54241259 is a prime.

It is a super-2 number, since 2×543723312 = 5912700756747122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54372331.

It is not an unprimeable number, because it can be changed into a prime (54372337) 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, 2091231 + ... + 2091256.

It is an arithmetic number, because the mean of its divisors is an integer number (14638708).

Almost surely, 254372331 is an apocalyptic number.

54372331 is a deficient number, since it is larger than the sum of its proper divisors (4182501).

54372331 is a wasteful number, since it uses less digits than its factorization.

54372331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182500.

The product of its digits is 7560, while the sum is 28.

The square root of 54372331 is about 7373.7596245063. The cubic root of 54372331 is about 378.8430438701.

Adding to 54372331 its reverse (13327345), we get a palindrome (67699676).

The spelling of 54372331 in words is "fifty-four million, three hundred seventy-two thousand, three hundred thirty-one".

Divisors: 1 13 4182487 54372331