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54002155 = 531348401
BaseRepresentation
bin1100111000000…
…0000111101011
310202121121000211
43032000013223
5102311032110
65205241551
71224003454
oct316000753
9122547024
1054002155
1128534689
12161032b7
13b259c4c
14725a12b
154b1a98a
hex33801eb

54002155 has 8 divisors (see below), whose sum is σ = 66893184. Its totient is φ = 41808000.

The previous prime is 54002153. The next prime is 54002159. The reversal of 54002155 is 55120045.

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

It is not a de Polignac number, because 54002155 - 21 = 54002153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54002153) 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, 174046 + ... + 174355.

It is an arithmetic number, because the mean of its divisors is an integer number (8361648).

Almost surely, 254002155 is an apocalyptic number.

54002155 is a deficient number, since it is larger than the sum of its proper divisors (12891029).

54002155 is a wasteful number, since it uses less digits than its factorization.

54002155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348437.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 54002155 is about 7348.6158560643. The cubic root of 54002155 is about 377.9813429198.

The spelling of 54002155 in words is "fifty-four million, two thousand, one hundred fifty-five".

Divisors: 1 5 31 155 348401 1742005 10800431 54002155