Search a number
-
+
1923057 = 321712569
BaseRepresentation
bin111010101011111110001
310121200221100
413111133301
5443014212
6105115013
722226403
oct7253761
93550840
101923057
1110a3904
12788a69
13524406
14380b73
1527ebdc
hex1d57f1

1923057 has 12 divisors (see below), whose sum is σ = 2941380. Its totient is φ = 1206528.

The previous prime is 1923049. The next prime is 1923059. The reversal of 1923057 is 7503291.

It can be written as a sum of positive squares in 2 ways, for example, as 1766241 + 156816 = 1329^2 + 396^2 .

It is not a de Polignac number, because 1923057 - 23 = 1923049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1923057.

It is not an unprimeable number, because it can be changed into a prime (1923059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6132 + ... + 6437.

It is an arithmetic number, because the mean of its divisors is an integer number (245115).

21923057 is an apocalyptic number.

1923057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1923057 is a deficient number, since it is larger than the sum of its proper divisors (1018323).

1923057 is a wasteful number, since it uses less digits than its factorization.

1923057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12592 (or 12589 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 1923057 is about 1386.7433071769. The cubic root of 1923057 is about 124.3552292168.

It can be divided in two parts, 192 and 3057, that added together give a square (3249 = 572).

The spelling of 1923057 in words is "one million, nine hundred twenty-three thousand, fifty-seven".

Divisors: 1 3 9 17 51 153 12569 37707 113121 213673 641019 1923057