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1394541108 = 223238737253
BaseRepresentation
bin101001100011111…
…0000001000110100
310121012002000202200
41103013300020310
510324000303413
6350213504500
746362255342
oct12307601064
93535060680
101394541108
11656200414
1232b042130
13192bb9b6c
14d32d0992
1582667573
hex531f0234

1394541108 has 18 divisors (see below), whose sum is σ = 3525090114. Its totient is φ = 464847024.

The previous prime is 1394541097. The next prime is 1394541143. The reversal of 1394541108 is 8011454931.

1394541108 is a `hidden beast` number, since 1 + 3 + 9 + 4 + 541 + 108 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1195223184 + 199317924 = 34572^2 + 14118^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 38737253 = 1394541108 / (1 + 3 + 9 + 4 + 5 + 4 + 1 + 1 + 0 + 8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19368591 + ... + 19368662.

Almost surely, 21394541108 is an apocalyptic number.

1394541108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1394541108 is an abundant number, since it is smaller than the sum of its proper divisors (2130549006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1394541108 is a wasteful number, since it uses less digits than its factorization.

1394541108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38737263 (or 38737258 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1394541108 is about 37343.5551066044. Note that the first 3 decimals coincide. The cubic root of 1394541108 is about 1117.2330476560.

The spelling of 1394541108 in words is "one billion, three hundred ninety-four million, five hundred forty-one thousand, one hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 38737253 77474506 116211759 154949012 232423518 348635277 464847036 697270554 1394541108