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676843144 = 23197429469
BaseRepresentation
bin101000010101111…
…100111010001000
31202011121012020121
4220111330322020
52341232440034
6151055033024
722526033425
oct5025747210
91664535217
10676843144
113180732aa
1216a80b774
13aa2c2103
1465c6ad4c
153e64b1b4
hex2857ce88

676843144 has 16 divisors (see below), whose sum is σ = 1275525900. Its totient is φ = 336702912.

The previous prime is 676843127. The next prime is 676843147. The reversal of 676843144 is 441348676.

It can be written as a sum of positive squares in 2 ways, for example, as 541120644 + 135722500 = 23262^2 + 11650^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 676843144.

It is not an unprimeable number, because it can be changed into a prime (676843147) 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, 213159 + ... + 216310.

Almost surely, 2676843144 is an apocalyptic number.

It is an amenable number.

676843144 is a deficient number, since it is larger than the sum of its proper divisors (598682756).

676843144 is a wasteful number, since it uses less digits than its factorization.

676843144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429672 (or 429668 counting only the distinct ones).

The product of its digits is 387072, while the sum is 43.

The square root of 676843144 is about 26016.2092550010. The cubic root of 676843144 is about 878.0030233584.

The spelling of 676843144 in words is "six hundred seventy-six million, eight hundred forty-three thousand, one hundred forty-four".

Divisors: 1 2 4 8 197 394 788 1576 429469 858938 1717876 3435752 84605393 169210786 338421572 676843144