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1380013340 = 225233000029
BaseRepresentation
bin101001001000001…
…0101010100011100
310120011201221102012
41102100111110130
510311240411330
6344534250352
746124630336
oct12220252434
93504657365
101380013340
11648a884a2
123261b69b8
1318cba1454
14d13cc456
1581247c95
hex5241551c

1380013340 has 24 divisors (see below), whose sum is σ = 3024030240. Its totient is φ = 528004928.

The previous prime is 1380013321. The next prime is 1380013367. The reversal of 1380013340 is 433100831.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1499555 + ... + 1500474.

It is an arithmetic number, because the mean of its divisors is an integer number (126001260).

Almost surely, 21380013340 is an apocalyptic number.

1380013340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1380013340 is an abundant number, since it is smaller than the sum of its proper divisors (1644016900).

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

1380013340 is a wasteful number, since it uses less digits than its factorization.

1380013340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000061 (or 3000059 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1380013340 is about 37148.5307919438. The cubic root of 1380013340 is about 1113.3398689263.

The spelling of 1380013340 in words is "one billion, three hundred eighty million, thirteen thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 3000029 6000058 12000116 15000145 30000290 60000580 69000667 138001334 276002668 345003335 690006670 1380013340