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1383750057 = 31383133349
BaseRepresentation
bin101001001111010…
…0101100110101001
310120102202210020010
41102132211212221
510313220000212
6345150322133
746201452504
oct12236454651
93512683203
101383750057
116500aa998
123274b9349
131908ac221
14d1ac213b
158173503c
hex527a59a9

1383750057 has 8 divisors (see below), whose sum is σ = 1845188800. Its totient is φ = 922405680.

The previous prime is 1383750029. The next prime is 1383750059. The reversal of 1383750057 is 7500573831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1383750057 - 27 = 1383749929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1383749997 and 1383750024.

It is not an unprimeable number, because it can be changed into a prime (1383750059) 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, 24819 + ... + 58167.

It is an arithmetic number, because the mean of its divisors is an integer number (230648600).

Almost surely, 21383750057 is an apocalyptic number.

It is an amenable number.

1383750057 is a deficient number, since it is larger than the sum of its proper divisors (461438743).

1383750057 is a wasteful number, since it uses less digits than its factorization.

1383750057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47183.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 1383750057 is about 37198.7910690657. The cubic root of 1383750057 is about 1114.3438415178.

The spelling of 1383750057 in words is "one billion, three hundred eighty-three million, seven hundred fifty thousand, fifty-seven".

Divisors: 1 3 13831 33349 41493 100047 461250019 1383750057