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1375746648 = 233491116747
BaseRepresentation
bin101001000000000…
…0011101001011000
310112212201011121120
41102000003221120
510304142343043
6344303005240
746043440113
oct12200035130
93485634546
101375746648
11646633901
12324899820
1318c039393
14d09db57a
1580ba3983
hex52003a58

1375746648 has 32 divisors (see below), whose sum is σ = 3446400960. Its totient is φ = 457644320.

The previous prime is 1375746643. The next prime is 1375746649. The reversal of 1375746648 is 8466475731.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1375746648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375746643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46590 + ... + 70157.

It is an arithmetic number, because the mean of its divisors is an integer number (107700030).

Almost surely, 21375746648 is an apocalyptic number.

It is an amenable number.

1375746648 is an abundant number, since it is smaller than the sum of its proper divisors (2070654312).

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

1375746648 is a wasteful number, since it uses less digits than its factorization.

1375746648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117247 (or 117243 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 51.

The square root of 1375746648 is about 37091.0588686815. The cubic root of 1375746648 is about 1112.1912852619.

The spelling of 1375746648 in words is "one billion, three hundred seventy-five million, seven hundred forty-six thousand, six hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 491 982 1473 1964 2946 3928 5892 11784 116747 233494 350241 466988 700482 933976 1400964 2801928 57322777 114645554 171968331 229291108 343936662 458582216 687873324 1375746648