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380493837 = 3253797681
BaseRepresentation
bin10110101011011…
…110000000001101
3222111222002102100
4112223132000031
51234401300322
6101431145313
712300100323
oct2653360015
9874862370
10380493837
11185862719
12a7515239
1360aa1ba9
1438767d13
152360ddac
hex16ade00d

380493837 has 12 divisors (see below), whose sum is σ = 559972764. Its totient is φ = 248876160.

The previous prime is 380493781. The next prime is 380493851. The reversal of 380493837 is 738394083.

It is a happy number.

380493837 is a `hidden beast` number, since 3 + 80 + 493 + 83 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 276024996 + 104468841 = 16614^2 + 10221^2 .

It is not a de Polignac number, because 380493837 - 27 = 380493709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 380493792 and 380493801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380493637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 398364 + ... + 399317.

It is an arithmetic number, because the mean of its divisors is an integer number (46664397).

Almost surely, 2380493837 is an apocalyptic number.

It is an amenable number.

380493837 is a deficient number, since it is larger than the sum of its proper divisors (179478927).

380493837 is a wasteful number, since it uses less digits than its factorization.

380493837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797740 (or 797737 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 380493837 is about 19506.2512287728. The cubic root of 380493837 is about 724.6292750697.

The spelling of 380493837 in words is "three hundred eighty million, four hundred ninety-three thousand, eight hundred thirty-seven".

Divisors: 1 3 9 53 159 477 797681 2393043 7179129 42277093 126831279 380493837