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1380363490 = 251119683967
BaseRepresentation
bin101001001000110…
…1010110011100010
310120012101201201201
41102101222303202
510311333112430
6344545551414
746130616232
oct12221526342
93505351651
101380363490
116491a7580
1232634556a
1318cc9493c
14d147dcc2
15812b68ca
hex5246ace2

1380363490 has 64 divisors (see below), whose sum is σ = 2860323840. Its totient is φ = 474344640.

The previous prime is 1380363463. The next prime is 1380363493. The reversal of 1380363490 is 943630831.

It is not an unprimeable number, because it can be changed into a prime (1380363493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1426987 + ... + 1427953.

It is an arithmetic number, because the mean of its divisors is an integer number (44692560).

Almost surely, 21380363490 is an apocalyptic number.

1380363490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380363490 is an abundant number, since it is smaller than the sum of its proper divisors (1479960350).

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

1380363490 is a wasteful number, since it uses less digits than its factorization.

1380363490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 1380363490 is about 37153.2433308318. The cubic root of 1380363490 is about 1113.4340233274.

The spelling of 1380363490 in words is "one billion, three hundred eighty million, three hundred sixty-three thousand, four hundred ninety".

Divisors: 1 2 5 10 11 19 22 38 55 95 110 190 209 418 683 967 1045 1366 1934 2090 3415 4835 6830 7513 9670 10637 12977 15026 18373 21274 25954 36746 37565 53185 64885 75130 91865 106370 129770 142747 183730 202103 285494 404206 660461 713735 1010515 1320922 1427470 2021030 3302305 6604610 7265071 12548759 14530142 25097518 36325355 62743795 72650710 125487590 138036349 276072698 690181745 1380363490