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11381875 = 5418211
BaseRepresentation
bin101011011010…
…110001110011
3210102020222221
4223122301303
510403210000
61043541511
7165513211
oct53326163
923366887
1011381875
11647440a
12398a897
13248684b
141723cb1
15eec61a
hexadac73

11381875 has 10 divisors (see below), whose sum is σ = 14223572. Its totient is φ = 9105000.

The previous prime is 11381869. The next prime is 11381879. The reversal of 11381875 is 57818311.

It is a de Polignac number, because none of the positive numbers 2k-11381875 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11381875.

It is not an unprimeable number, because it can be changed into a prime (11381879) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8481 + ... + 9730.

Almost surely, 211381875 is an apocalyptic number.

11381875 is a deficient number, since it is larger than the sum of its proper divisors (2841697).

11381875 is an frugal number, since it uses more digits than its factorization.

11381875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18231 (or 18216 counting only the distinct ones).

The product of its digits is 6720, while the sum is 34.

The square root of 11381875 is about 3373.7034546622. The cubic root of 11381875 is about 224.9423720726.

The spelling of 11381875 in words is "eleven million, three hundred eighty-one thousand, eight hundred seventy-five".

Divisors: 1 5 25 125 625 18211 91055 455275 2276375 11381875