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673898480 = 2458423731
BaseRepresentation
bin101000001010101…
…101111111110000
31201222001120220222
4220022231333300
52340004222410
6150511552212
722462020413
oct5012557760
91658046828
10673898480
113164419a2
1216982b668
13a98009c8
1465701b7a
153e268955
hex282adff0

673898480 has 20 divisors (see below), whose sum is σ = 1566814152. Its totient is φ = 269559360.

The previous prime is 673898473. The next prime is 673898483. The reversal of 673898480 is 84898376.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×6738984802 = 908278322692620800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673898483) 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, 4211786 + ... + 4211945.

Almost surely, 2673898480 is an apocalyptic number.

It is an amenable number.

673898480 is an abundant number, since it is smaller than the sum of its proper divisors (892915672).

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

673898480 is a wasteful number, since it uses less digits than its factorization.

673898480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8423744 (or 8423738 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The square root of 673898480 is about 25959.5546957185. The cubic root of 673898480 is about 876.7278966295.

The spelling of 673898480 in words is "six hundred seventy-three million, eight hundred ninety-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 8423731 16847462 33694924 42118655 67389848 84237310 134779696 168474620 336949240 673898480