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54072811 = 134159447
BaseRepresentation
bin1100111001000…
…1010111101011
310202202011221201
43032101113223
5102320312221
65210545031
71224416452
oct316212753
9122664851
1054072811
1128582781
1216138177
13b283160
147277b99
154b31891
hex33915eb

54072811 has 4 divisors (see below), whose sum is σ = 58232272. Its totient is φ = 49913352.

The previous prime is 54072787. The next prime is 54072827. The reversal of 54072811 is 11827045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54072811 - 29 = 54072299 is a prime.

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 54072811.

It is not an unprimeable number, because it can be changed into a prime (54072871) 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, 2079711 + ... + 2079736.

It is an arithmetic number, because the mean of its divisors is an integer number (14558068).

Almost surely, 254072811 is an apocalyptic number.

54072811 is the 4246-th hex number.

54072811 is a deficient number, since it is larger than the sum of its proper divisors (4159461).

54072811 is a wasteful number, since it uses less digits than its factorization.

54072811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4159460.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 54072811 is about 7353.4217205326. The cubic root of 54072811 is about 378.1461203603.

Adding to 54072811 its reverse (11827045), we get a palindrome (65899856).

The spelling of 54072811 in words is "fifty-four million, seventy-two thousand, eight hundred eleven".

Divisors: 1 13 4159447 54072811