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445454013 = 3853917389
BaseRepresentation
bin11010100011010…
…001011010111101
31011001012102000210
4122203101122331
51403014012023
6112111343033
714016203514
oct3243213275
91131172023
10445454013
112094a1214
12105221a79
1371397774
144323767b
1529191593
hex1a8d16bd

445454013 has 8 divisors (see below), whose sum is σ = 594042400. Its totient is φ = 296917488.

The previous prime is 445453969. The next prime is 445454017. The reversal of 445454013 is 310454544.

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

It is not a de Polignac number, because 445454013 - 221 = 443356861 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 (445454017) 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, 16923 + ... + 34311.

It is an arithmetic number, because the mean of its divisors is an integer number (74255300).

Almost surely, 2445454013 is an apocalyptic number.

It is an amenable number.

445454013 is a deficient number, since it is larger than the sum of its proper divisors (148588387).

445454013 is a wasteful number, since it uses less digits than its factorization.

445454013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25931.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 445454013 is about 21105.7815064972. The cubic root of 445454013 is about 763.7202251503.

The spelling of 445454013 in words is "four hundred forty-five million, four hundred fifty-four thousand, thirteen".

Divisors: 1 3 8539 17389 25617 52167 148484671 445454013