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1348138688 = 26132124643
BaseRepresentation
bin101000001011010…
…1111011011000000
310110221202112121112
41100112233123000
510230110414223
6341435142452
745256663331
oct12026573300
93427675545
101348138688
11631a97606
123175a4a28
131863c1100
14cb092288
157d54d778
hex505af6c0

1348138688 has 42 divisors (see below), whose sum is σ = 2896851204. Its totient is φ = 622212864.

The previous prime is 1348138681. The next prime is 1348138717. The reversal of 1348138688 is 8868318431.

It is a super-2 number, since 2×13481386882 = 3634955844164722688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1348138681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51506 + ... + 73137.

Almost surely, 21348138688 is an apocalyptic number.

It is an amenable number.

1348138688 is an abundant number, since it is smaller than the sum of its proper divisors (1548712516).

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

1348138688 is a wasteful number, since it uses less digits than its factorization.

1348138688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124681 (or 124658 counting only the distinct ones).

The product of its digits is 884736, while the sum is 50.

The square root of 1348138688 is about 36717.0081569836. The cubic root of 1348138688 is about 1104.7012802680.

The spelling of 1348138688 in words is "one billion, three hundred forty-eight million, one hundred thirty-eight thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 169 208 338 416 676 832 1352 2704 5408 10816 124643 249286 498572 997144 1620359 1994288 3240718 3988576 6481436 7977152 12962872 21064667 25925744 42129334 51851488 84258668 103702976 168517336 337034672 674069344 1348138688