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380456109 = 3511317449
BaseRepresentation
bin10110101011010…
…100110010101101
3222111220011200000
4112223110302231
51234344043414
6101430254513
712266552325
oct2653246255
9874804600
10380456109
11185837340
12a74b7439
1360a8a977
1438758285
1523602b09
hex16ad4cad

380456109 has 48 divisors (see below), whose sum is σ = 625060800. Its totient is φ = 229340160.

The previous prime is 380456099. The next prime is 380456119. The reversal of 380456109 is 901654083.

380456109 is a `hidden beast` number, since 38 + 0 + 4 + 5 + 610 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (380456099) and next prime (380456119).

It is not a de Polignac number, because 380456109 - 25 = 380456077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380456119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 847117 + ... + 847565.

It is an arithmetic number, because the mean of its divisors is an integer number (13022100).

Almost surely, 2380456109 is an apocalyptic number.

It is an amenable number.

380456109 is a deficient number, since it is larger than the sum of its proper divisors (244604691).

380456109 is a wasteful number, since it uses less digits than its factorization.

380456109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 380456109 is about 19505.2841302043. The cubic root of 380456109 is about 724.6053239880.

The spelling of 380456109 in words is "three hundred eighty million, four hundred fifty-six thousand, one hundred nine".

Divisors: 1 3 9 11 27 33 81 99 243 297 317 449 891 951 1347 2673 2853 3487 4041 4939 8559 10461 12123 14817 25677 31383 36369 44451 77031 94149 109107 133353 142333 282447 400059 426999 847341 1200177 1280997 1565663 3842991 4696989 11528973 14090967 34586919 42272901 126818703 380456109