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5320821 = 311161237
BaseRepresentation
bin10100010011000001110101
3101000022210110
4110103001311
52330231241
6310013233
763140412
oct24230165
911008713
105320821
113004680
121947219
131143b1c
149c7109
15701816
hex513075

5320821 has 8 divisors (see below), whose sum is σ = 7739424. Its totient is φ = 3224720.

The previous prime is 5320801. The next prime is 5320841. The reversal of 5320821 is 1280235.

It is an interprime number because it is at equal distance from previous prime (5320801) and next prime (5320841).

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

It is a cyclic number.

It is not a de Polignac number, because 5320821 - 29 = 5320309 is a prime.

It is a super-2 number, since 2×53208212 = 56622272228082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5320801) 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, 80586 + ... + 80651.

It is an arithmetic number, because the mean of its divisors is an integer number (967428).

Almost surely, 25320821 is an apocalyptic number.

It is an amenable number.

5320821 is a deficient number, since it is larger than the sum of its proper divisors (2418603).

5320821 is a wasteful number, since it uses less digits than its factorization.

5320821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161251.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 5320821 is about 2306.6904863895. The cubic root of 5320821 is about 174.5793543344.

The spelling of 5320821 in words is "five million, three hundred twenty thousand, eight hundred twenty-one".

Divisors: 1 3 11 33 161237 483711 1773607 5320821