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673082881 = 3153894603
BaseRepresentation
bin101000000111100…
…110111000000001
31201220112011010121
4220013212320001
52334302123011
6150442300241
722452052522
oct5007467001
91656464117
10673082881
11315a35149
121694b7681
13a95a66c3
146556c849
153e156e71
hex281e6e01

673082881 has 16 divisors (see below), whose sum is σ = 716014080. Its totient is φ = 631762560.

The previous prime is 673082869. The next prime is 673082899. The reversal of 673082881 is 188280376.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-673082881 is a prime.

It is a super-2 number, since 2×6730828812 = 906081129390520322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673082801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143926 + ... + 148528.

It is an arithmetic number, because the mean of its divisors is an integer number (44750880).

Almost surely, 2673082881 is an apocalyptic number.

It is an amenable number.

673082881 is a deficient number, since it is larger than the sum of its proper divisors (42931199).

673082881 is a wasteful number, since it uses less digits than its factorization.

673082881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4776.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 673082881 is about 25943.8409068511. The cubic root of 673082881 is about 876.3740614044.

The spelling of 673082881 in words is "six hundred seventy-three million, eighty-two thousand, eight hundred eighty-one".

Divisors: 1 31 53 89 1643 2759 4603 4717 142693 146227 243959 409667 7562729 12699677 21712351 673082881