Search a number
-
+
11111390 = 251958481
BaseRepresentation
bin101010011000…
…101111011110
3202220111221222
4222120233132
510321031030
61034053342
7163305503
oct52305736
922814858
1011111390
1162aa174
12387a252
1323c06b4
1416934aa
15e973e5
hexa98bde

11111390 has 16 divisors (see below), whose sum is σ = 21053520. Its totient is φ = 4210560.

The previous prime is 11111341. The next prime is 11111393. The reversal of 11111390 is 9311111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111393) 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, 29051 + ... + 29430.

It is an arithmetic number, because the mean of its divisors is an integer number (1315845).

Almost surely, 211111390 is an apocalyptic number.

11111390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111390 is a deficient number, since it is larger than the sum of its proper divisors (9942130).

11111390 is a wasteful number, since it uses less digits than its factorization.

11111390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58507.

The product of its (nonzero) digits is 27, while the sum is 17.

The square root of 11111390 is about 3333.3751664042. The cubic root of 11111390 is about 223.1461836526.

The spelling of 11111390 in words is "eleven million, one hundred eleven thousand, three hundred ninety".

Divisors: 1 2 5 10 19 38 95 190 58481 116962 292405 584810 1111139 2222278 5555695 11111390