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672993 = 32374347
BaseRepresentation
bin10100100010011100001
31021012011200
42210103201
5133013433
622231413
75502036
oct2442341
91235150
10672993
1141a6a2
12285569
131a7429
1413738d
15d4613
hexa44e1

672993 has 24 divisors (see below), whose sum is σ = 1043328. Its totient is φ = 417312.

The previous prime is 672983. The next prime is 673019. The reversal of 672993 is 399276.

It is not a de Polignac number, because 672993 - 24 = 672977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (672913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14296 + ... + 14342.

It is an arithmetic number, because the mean of its divisors is an integer number (43472).

2672993 is an apocalyptic number.

It is an amenable number.

672993 is a deficient number, since it is larger than the sum of its proper divisors (370335).

672993 is a wasteful number, since it uses less digits than its factorization.

672993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 130 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 672993 is about 820.3615056791. The cubic root of 672993 is about 87.6335050417.

The spelling of 672993 in words is "six hundred seventy-two thousand, nine hundred ninety-three".

Divisors: 1 3 9 37 43 47 111 129 141 333 387 423 1591 1739 2021 4773 5217 6063 14319 15651 18189 74777 224331 672993