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275351990 = 25191738377
BaseRepresentation
bin10000011010011…
…000100110110110
3201012010022220212
4100122120212312
51030442230430
643153425422
76552311324
oct2032304666
9635108825
10275351990
1113147a031
127826b272
134507ab94
14287d8d14
1519290b95
hex106989b6

275351990 has 32 divisors (see below), whose sum is σ = 524797920. Its totient is φ = 103728384.

The previous prime is 275351983. The next prime is 275352001. The reversal of 275351990 is 99153572.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28682 + ... + 37058.

It is an arithmetic number, because the mean of its divisors is an integer number (16399935).

Almost surely, 2275351990 is an apocalyptic number.

275351990 is a deficient number, since it is larger than the sum of its proper divisors (249445930).

275351990 is a wasteful number, since it uses less digits than its factorization.

275351990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8576.

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 275351990 is about 16593.7334557356. The cubic root of 275351990 is about 650.5730567601.

The spelling of 275351990 in words is "two hundred seventy-five million, three hundred fifty-one thousand, nine hundred ninety".

Divisors: 1 2 5 10 19 38 95 173 190 346 865 1730 3287 6574 8377 16435 16754 32870 41885 83770 159163 318326 795815 1449221 1591630 2898442 7246105 14492210 27535199 55070398 137675995 275351990