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445197452 = 22715899909
BaseRepresentation
bin11010100010010…
…010110010001100
31011000201101002112
4122202102302030
51402432304302
6112102043152
714014054520
oct3242226214
91130641075
10445197452
11209336487
121051194b8
1371307a5b
14431abd80
1529140552
hex1a892c8c

445197452 has 12 divisors (see below), whose sum is σ = 890394960. Its totient is φ = 190798896.

The previous prime is 445197409. The next prime is 445197457. The reversal of 445197452 is 254791544.

445197452 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (445197457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7949927 + ... + 7949982.

It is an arithmetic number, because the mean of its divisors is an integer number (74199580).

Almost surely, 2445197452 is an apocalyptic number.

It is an amenable number.

445197452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445197452 is a wasteful number, since it uses less digits than its factorization.

445197452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15899920 (or 15899918 counting only the distinct ones).

The product of its digits is 201600, while the sum is 41.

The square root of 445197452 is about 21099.7026519333. The cubic root of 445197452 is about 763.5735744309.

The spelling of 445197452 in words is "four hundred forty-five million, one hundred ninety-seven thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 15899909 31799818 63599636 111299363 222598726 445197452