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1380701568 = 2734187697
BaseRepresentation
bin101001001001011…
…1101010110000000
310120020000220111010
41102102331112000
510311424422233
6345001120520
746133525001
oct12222752600
93506026433
101380701568
11649408584
12326489140
1319008279c
14d152b1a8
1581331b63
hex524bd580

1380701568 has 64 divisors (see below), whose sum is σ = 3756982320. Its totient is φ = 449003520.

The previous prime is 1380701561. The next prime is 1380701573. The reversal of 1380701568 is 8651070831.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380701561) 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 7 ways as a sum of consecutive naturals, for example, 28105 + ... + 59592.

Almost surely, 21380701568 is an apocalyptic number.

It is an amenable number.

1380701568 is an abundant number, since it is smaller than the sum of its proper divisors (2376280752).

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

1380701568 is an equidigital number, since it uses as much as digits as its factorization.

1380701568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87755 (or 87743 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1380701568 is about 37157.7928300377. The cubic root of 1380701568 is about 1113.5249164927.

The spelling of 1380701568 in words is "one billion, three hundred eighty million, seven hundred one thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 41 48 64 82 96 123 128 164 192 246 328 384 492 656 984 1312 1968 2624 3936 5248 7872 15744 87697 175394 263091 350788 526182 701576 1052364 1403152 2104728 2806304 3595577 4209456 5612608 7191154 8418912 10786731 11225216 14382308 16837824 21573462 28764616 33675648 43146924 57529232 86293848 115058464 172587696 230116928 345175392 460233856 690350784 1380701568