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442440167 = 13231479733
BaseRepresentation
bin11010010111110…
…001100111100111
31010211112021210212
4122113301213213
51401231041132
6111523010035
713651452011
oct3227614747
91124467725
10442440167
11207822934
1210420991b
1370880a20
1442a911b1
1528c985b2
hex1a5f19e7

442440167 has 8 divisors (see below), whose sum is σ = 497190624. Its totient is φ = 390649248.

The previous prime is 442440161. The next prime is 442440169. The reversal of 442440167 is 761044244.

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 442440167 - 24 = 442440151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442440161) 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, 739568 + ... + 740165.

It is an arithmetic number, because the mean of its divisors is an integer number (62148828).

Almost surely, 2442440167 is an apocalyptic number.

442440167 is a deficient number, since it is larger than the sum of its proper divisors (54750457).

442440167 is a wasteful number, since it uses less digits than its factorization.

442440167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479769.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 442440167 is about 21034.2617412639. The cubic root of 442440167 is about 761.9939371433.

The spelling of 442440167 in words is "four hundred forty-two million, four hundred forty thousand, one hundred sixty-seven".

Divisors: 1 13 23 299 1479733 19236529 34033859 442440167