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54102245 = 517237441
BaseRepresentation
bin1100111001100…
…0100011100101
310202210200022212
43032120203211
5102322232440
65211333205
71224601331
oct316304345
9122720285
1054102245
11285a28aa
1216151205
13b293682
1472847c1
154b3a465
hex33988e5

54102245 has 12 divisors (see below), whose sum is σ = 68968164. Its totient is φ = 40734720.

The previous prime is 54102239. The next prime is 54102263. The reversal of 54102245 is 54220145.

It is a happy number.

54102245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 3094081 + 51008164 = 1759^2 + 7142^2 .

It is not a de Polignac number, because 54102245 - 24 = 54102229 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 54102245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17276 + ... + 20165.

It is an arithmetic number, because the mean of its divisors is an integer number (5747347).

Almost surely, 254102245 is an apocalyptic number.

It is an amenable number.

54102245 is a deficient number, since it is larger than the sum of its proper divisors (14865919).

54102245 is a wasteful number, since it uses less digits than its factorization.

54102245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37480 (or 37463 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 54102245 is about 7355.4228294504. The cubic root of 54102245 is about 378.2147212815.

The spelling of 54102245 in words is "fifty-four million, one hundred two thousand, two hundred forty-five".

Divisors: 1 5 17 85 289 1445 37441 187205 636497 3182485 10820449 54102245