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1394048970 = 232515489433
BaseRepresentation
bin101001100010111…
…0111111111001010
310121011011000200100
41103011313333022
510323334031340
6350155150230
746355135466
oct12305677712
93534130610
101394048970
116559a4696
1232aa45376
13192a76b62
14d32034a6
15825bb830
hex53177fca

1394048970 has 24 divisors (see below), whose sum is σ = 3624527556. Its totient is φ = 371746368.

The previous prime is 1394048941. The next prime is 1394048987. The reversal of 1394048970 is 798404931.

1394048970 is a `hidden beast` number, since 13 + 94 + 0 + 489 + 70 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1388531169 + 5517801 = 37263^2 + 2349^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7744627 + ... + 7744806.

Almost surely, 21394048970 is an apocalyptic number.

1394048970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1394048970 is an abundant number, since it is smaller than the sum of its proper divisors (2230478586).

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

1394048970 is a wasteful number, since it uses less digits than its factorization.

1394048970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15489446 (or 15489443 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1394048970 is about 37336.9651953664. The cubic root of 1394048970 is about 1117.1016071588.

The spelling of 1394048970 in words is "one billion, three hundred ninety-four million, forty-eight thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 15489433 30978866 46468299 77447165 92936598 139404897 154894330 232341495 278809794 464682990 697024485 1394048970