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275025601 = 691398011
BaseRepresentation
bin10000011001001…
…000111011000001
3201011111202012101
4100121020323001
51030401304401
643142430401
76546451624
oct2031107301
9634452171
10275025601
11131276894
1278132401
1344c95456
1428751dbb
1519229101
hex10648ec1

275025601 has 4 divisors (see below), whose sum is σ = 275424304. Its totient is φ = 274626900.

The previous prime is 275025599. The next prime is 275025613. The reversal of 275025601 is 106520572.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 275025601 - 21 = 275025599 is a prime.

It is a super-2 number, since 2×2750256012 = 151278162410822402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 275025601.

It is not an unprimeable number, because it can be changed into a prime (275025661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198315 + ... + 199696.

It is an arithmetic number, because the mean of its divisors is an integer number (68856076).

Almost surely, 2275025601 is an apocalyptic number.

It is an amenable number.

275025601 is a deficient number, since it is larger than the sum of its proper divisors (398703).

275025601 is an equidigital number, since it uses as much as digits as its factorization.

275025601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398702.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 275025601 is about 16583.8958330062. The cubic root of 275025601 is about 650.3159024611.

The spelling of 275025601 in words is "two hundred seventy-five million, twenty-five thousand, six hundred one".

Divisors: 1 691 398011 275025601