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1380249348 = 2231134492267
BaseRepresentation
bin101001001000100…
…1110111100000100
310120012011221011020
41102101032330010
510311320434343
6344543311140
746126632402
oct12221167404
93505157136
101380249348
11649129845
123262ab4b0
1318cc549ba
14d1450472
1581292b83
hex5244ef04

1380249348 has 48 divisors (see below), whose sum is σ = 3257755200. Its totient is φ = 454795264.

The previous prime is 1380249331. The next prime is 1380249349. The reversal of 1380249348 is 8439420831.

It is not an unprimeable number, because it can be changed into a prime (1380249349) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 607711 + ... + 609977.

It is an arithmetic number, because the mean of its divisors is an integer number (67869900).

Almost surely, 21380249348 is an apocalyptic number.

It is an amenable number.

1380249348 is an abundant number, since it is smaller than the sum of its proper divisors (1877505852).

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

1380249348 is a wasteful number, since it uses less digits than its factorization.

1380249348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836 (or 2834 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 1380249348 is about 37151.7072016886. The cubic root of 1380249348 is about 1113.4033325975.

The spelling of 1380249348 in words is "one billion, three hundred eighty million, two hundred forty-nine thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 113 226 339 449 452 678 898 1347 1356 1796 2267 2694 4534 5388 6801 9068 13602 27204 50737 101474 152211 202948 256171 304422 512342 608844 768513 1017883 1024684 1537026 2035766 3053649 3074052 4071532 6107298 12214596 115020779 230041558 345062337 460083116 690124674 1380249348