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275219990 = 2553519283
BaseRepresentation
bin10000011001111…
…000011000010110
3201011212121211222
4100121320120112
51030424014430
643150530342
76551221433
oct2031703026
9634777758
10275219990
11131399941
12782069b2
1345032a86
14287a2b8a
15192669e5
hex10678616

275219990 has 16 divisors (see below), whose sum is σ = 504744048. Its totient is φ = 108010656.

The previous prime is 275219977. The next prime is 275219993. The reversal of 275219990 is 99912572.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275219993) 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, 259112 + ... + 260171.

It is an arithmetic number, because the mean of its divisors is an integer number (31546503).

Almost surely, 2275219990 is an apocalyptic number.

275219990 is a deficient number, since it is larger than the sum of its proper divisors (229524058).

275219990 is a wasteful number, since it uses less digits than its factorization.

275219990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519343.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 275219990 is about 16589.7555738474. The cubic root of 275219990 is about 650.4690815177.

The spelling of 275219990 in words is "two hundred seventy-five million, two hundred nineteen thousand, nine hundred ninety".

Divisors: 1 2 5 10 53 106 265 530 519283 1038566 2596415 5192830 27521999 55043998 137609995 275219990