Search a number
-
+
1950174990 = 232570130911
BaseRepresentation
bin111010000111101…
…0100111100001110
312000220121011011100
41310033110330032
512443221044430
6521303003530
766220133241
oct16417247416
95026534140
101950174990
11910906375
124651395a6
132510507ca
14147009258
15b631e960
hex743d4f0e

1950174990 has 48 divisors (see below), whose sum is σ = 5077852416. Its totient is φ = 519288000.

The previous prime is 1950174979. The next prime is 1950175061. The reversal of 1950174990 is 994710591.

1950174990 is a `hidden beast` number, since 19 + 501 + 7 + 49 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47635 + ... + 78545.

It is an arithmetic number, because the mean of its divisors is an integer number (105788592).

Almost surely, 21950174990 is an apocalyptic number.

1950174990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1950174990 is an abundant number, since it is smaller than the sum of its proper divisors (3127677426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1950174990 is a wasteful number, since it uses less digits than its factorization.

1950174990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31625 (or 31622 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The square root of 1950174990 is about 44160.7856587720. The cubic root of 1950174990 is about 1249.3703474167.

The spelling of 1950174990 in words is "one billion, nine hundred fifty million, one hundred seventy-four thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 701 1402 2103 3505 4206 6309 7010 10515 12618 21030 30911 31545 61822 63090 92733 154555 185466 278199 309110 463665 556398 927330 1390995 2781990 21668611 43337222 65005833 108343055 130011666 195017499 216686110 325029165 390034998 650058330 975087495 1950174990