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5215390 = 25521539
BaseRepresentation
bin10011111001010010011110
3100210222011121
4103321102132
52313343030
6303441154
762221135
oct23712236
910728147
105215390
112a42444
1218b61ba
131107b3b
1499a91c
156d047a
hex4f949e

5215390 has 8 divisors (see below), whose sum is σ = 9387720. Its totient is φ = 2086152.

The previous prime is 5215387. The next prime is 5215393. The reversal of 5215390 is 935125.

It is an interprime number because it is at equal distance from previous prime (5215387) and next prime (5215393).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5215393) 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 3 ways as a sum of consecutive naturals, for example, 260760 + ... + 260779.

It is an arithmetic number, because the mean of its divisors is an integer number (1173465).

Almost surely, 25215390 is an apocalyptic number.

5215390 is a deficient number, since it is larger than the sum of its proper divisors (4172330).

5215390 is a wasteful number, since it uses less digits than its factorization.

5215390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521546.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 5215390 is about 2283.7228378242. The cubic root of 5215390 is about 173.4185683689.

The spelling of 5215390 in words is "five million, two hundred fifteen thousand, three hundred ninety".

Divisors: 1 2 5 10 521539 1043078 2607695 5215390