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1373575968 = 2537191033
BaseRepresentation
bin101000111011111…
…0001101100100000
310112201121220000000
41101313301230200
510303113412333
6344144300000
746016126442
oct12167615440
93481556000
101373575968
11645390a56
12324011600
1318b75935b
14d05d4492
15808c5713
hex51df1b20

1373575968 has 192 divisors, whose sum is σ = 4273315200. Its totient is φ = 433340928.

The previous prime is 1373575963. The next prime is 1373576027. The reversal of 1373575968 is 8695753731.

1373575968 is a `hidden beast` number, since 1 + 3 + 7 + 3 + 575 + 9 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373575963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1329180 + ... + 1330212.

It is an arithmetic number, because the mean of its divisors is an integer number (22256850).

Almost surely, 21373575968 is an apocalyptic number.

1373575968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1373575968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2136657600).

1373575968 is an abundant number, since it is smaller than the sum of its proper divisors (2899739232).

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

1373575968 is an equidigital number, since it uses as much as digits as its factorization.

1373575968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083 (or 1057 counting only the distinct ones).

The product of its digits is 4762800, while the sum is 54.

The square root of 1373575968 is about 37061.7858177395. The cubic root of 1373575968 is about 1111.6060316163.

The spelling of 1373575968 in words is "one billion, three hundred seventy-three million, five hundred seventy-five thousand, nine hundred sixty-eight".