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1868996 = 22974817
BaseRepresentation
bin111001000010011000100
310111221210002
413020103010
5434301441
6104020432
721612653
oct7102304
93457702
101868996
111067228
12761718
1350591c
1436919a
1526db9b
hex1c84c4

1868996 has 12 divisors (see below), whose sum is σ = 3305148. Its totient is φ = 924672.

The previous prime is 1868989. The next prime is 1869029. The reversal of 1868996 is 6998681.

It can be written as a sum of positive squares in 2 ways, for example, as 462400 + 1406596 = 680^2 + 1186^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1868996.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2021 + ... + 2796.

It is an arithmetic number, because the mean of its divisors is an integer number (275429).

21868996 is an apocalyptic number.

It is an amenable number.

1868996 is a deficient number, since it is larger than the sum of its proper divisors (1436152).

1868996 is a wasteful number, since it uses less digits than its factorization.

1868996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4918 (or 4916 counting only the distinct ones).

The product of its digits is 186624, while the sum is 47.

The square root of 1868996 is about 1367.1122850739. The cubic root of 1868996 is about 123.1788439807.

The spelling of 1868996 in words is "one million, eight hundred sixty-eight thousand, nine hundred ninety-six".

Divisors: 1 2 4 97 194 388 4817 9634 19268 467249 934498 1868996