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1266428806 = 223177715493
BaseRepresentation
bin100101101111100…
…0010101110000110
310021021000020201121
41023133002232012
510043201210211
6325355544154
743245316156
oct11337025606
93237006647
101266428806
1159a958785
122b415b05a
131724b2676
14c02a2766
15762ad271
hex4b7c2b86

1266428806 has 16 divisors (see below), whose sum is σ = 1983479904. Its totient is φ = 605303424.

The previous prime is 1266428797. The next prime is 1266428837. The reversal of 1266428806 is 6088246621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73996 + ... + 89488.

It is an arithmetic number, because the mean of its divisors is an integer number (123967494).

Almost surely, 21266428806 is an apocalyptic number.

1266428806 is a deficient number, since it is larger than the sum of its proper divisors (717051098).

1266428806 is a wasteful number, since it uses less digits than its factorization.

1266428806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17295.

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 1266428806 is about 35586.9190293287. The cubic root of 1266428806 is about 1081.9161245989.

The spelling of 1266428806 in words is "one billion, two hundred sixty-six million, four hundred twenty-eight thousand, eight hundred six".

Divisors: 1 2 23 46 1777 3554 15493 30986 40871 81742 356339 712678 27531061 55062122 633214403 1266428806