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1950988 = 2213172207
BaseRepresentation
bin111011100010100001100
310200010020211
413130110030
5444412423
6105452204
722404004
oct7342414
93603224
101950988
111112896
127a1064
13534040
1438b004
1528810d
hex1dc50c

1950988 has 24 divisors (see below), whose sum is σ = 3894912. Its totient is φ = 847104.

The previous prime is 1950979. The next prime is 1950989. The reversal of 1950988 is 8890591.

It is a super-2 number, since 2×19509882 = 7612708352288, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1950988.

It is not an unprimeable number, because it can be changed into a prime (1950989) 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, 220 + ... + 1987.

It is an arithmetic number, because the mean of its divisors is an integer number (162288).

21950988 is an apocalyptic number.

It is an amenable number.

1950988 is a deficient number, since it is larger than the sum of its proper divisors (1943924).

1950988 is a wasteful number, since it uses less digits than its factorization.

1950988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241 (or 2239 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 1950988 is about 1396.7777203263. Note that the first 4 decimals coincide. The cubic root of 1950988 is about 124.9543940295.

The spelling of 1950988 in words is "one million, nine hundred fifty thousand, nine hundred eighty-eight".

Divisors: 1 2 4 13 17 26 34 52 68 221 442 884 2207 4414 8828 28691 37519 57382 75038 114764 150076 487747 975494 1950988