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275053961 = 71367197229
BaseRepresentation
bin10000011001001…
…111110110001001
3201011120012002202
4100121033312021
51030403211321
643143205545
76546630410
oct2031176611
9634505082
10275053961
11131296126
12781468b5
1344ca5330
142875c477
151923270b
hex1064fd89

275053961 has 32 divisors (see below), whose sum is σ = 346832640. Its totient is φ = 212357376.

The previous prime is 275053913. The next prime is 275053973. The reversal of 275053961 is 169350572.

It is a happy number.

It is not a de Polignac number, because 275053961 - 210 = 275052937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (275053991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1200995 + ... + 1201223.

It is an arithmetic number, because the mean of its divisors is an integer number (10838520).

Almost surely, 2275053961 is an apocalyptic number.

It is an amenable number.

275053961 is a deficient number, since it is larger than the sum of its proper divisors (71778679).

275053961 is a wasteful number, since it uses less digits than its factorization.

275053961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 275053961 is about 16584.7508573388. The cubic root of 275053961 is about 650.3382547137.

The spelling of 275053961 in words is "two hundred seventy-five million, fifty-three thousand, nine hundred sixty-one".

Divisors: 1 7 13 67 91 197 229 469 871 1379 1603 2561 2977 6097 13199 15343 17927 20839 45113 92393 107401 171587 199459 315791 586469 1201109 1396213 3022571 4105283 21157997 39293423 275053961