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5191245 = 325115361
BaseRepresentation
bin10011110011011001001101
3100202202001100
4103303121031
52312104440
6303133313
762060553
oct23633115
910682040
105191245
112a26294
1218a4239
1310c9b57
14991bd3
156c8230
hex4f364d

5191245 has 12 divisors (see below), whose sum is σ = 8998236. Its totient is φ = 2768640.

The previous prime is 5191243. The next prime is 5191247. The reversal of 5191245 is 5421915.

It is an interprime number because it is at equal distance from previous prime (5191243) and next prime (5191247).

It can be written as a sum of positive squares in 2 ways, for example, as 3392964 + 1798281 = 1842^2 + 1341^2 .

It is not a de Polignac number, because 5191245 - 21 = 5191243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5191243) by changing a digit.

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, 57636 + ... + 57725.

It is an arithmetic number, because the mean of its divisors is an integer number (749853).

Almost surely, 25191245 is an apocalyptic number.

It is an amenable number.

5191245 is a deficient number, since it is larger than the sum of its proper divisors (3806991).

5191245 is a wasteful number, since it uses less digits than its factorization.

5191245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115372 (or 115369 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 5191245 is about 2278.4303807665. The cubic root of 5191245 is about 173.1505366632.

It can be divided in two parts, 519 and 1245, that added together give a square (1764 = 422).

The spelling of 5191245 in words is "five million, one hundred ninety-one thousand, two hundred forty-five".

Divisors: 1 3 5 9 15 45 115361 346083 576805 1038249 1730415 5191245