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52274405 = 517672137
BaseRepresentation
bin1100011101101…
…0010011100101
310122100211000002
43013122103211
5101340240110
65104231045
71203216341
oct307322345
9118324002
1052274405
1127564597
121560b485
13aaa3701
146d2a621
1548c8aa5
hex31da4e5

52274405 has 24 divisors (see below), whose sum is σ = 67917528. Its totient is φ = 38489088.

The previous prime is 52274393. The next prime is 52274437. The reversal of 52274405 is 50447225.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12609601 + 39664804 = 3551^2 + 6298^2 .

It is not a de Polignac number, because 52274405 - 210 = 52273381 is a prime.

It is a super-2 number, since 2×522744052 = 5465226836208050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 381497 + ... + 381633.

It is an arithmetic number, because the mean of its divisors is an integer number (2829897).

Almost surely, 252274405 is an apocalyptic number.

It is an amenable number.

52274405 is a deficient number, since it is larger than the sum of its proper divisors (15643123).

52274405 is a wasteful number, since it uses less digits than its factorization.

52274405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 52274405 is about 7230.1040794722. The cubic root of 52274405 is about 373.9065152831.

The spelling of 52274405 in words is "fifty-two million, two hundred seventy-four thousand, four hundred five".

Divisors: 1 5 17 67 85 137 335 685 1139 2329 4489 5695 9179 11645 22445 45895 76313 156043 381565 614993 780215 3074965 10454881 52274405