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252613277 = 7210947297
BaseRepresentation
bin11110000111010…
…01001010011101
3122121100002021022
433003221022131
51004132111102
641022213525
76155114600
oct1703511235
9577302238
10252613277
1111a659104
12707242a5
1340449017
142579a337
151729d5a2
hexf0e929d

252613277 has 12 divisors (see below), whose sum is σ = 296558460. Its totient is φ = 214534656.

The previous prime is 252613253. The next prime is 252613289. The reversal of 252613277 is 772316252.

It can be written as a sum of positive squares in 2 ways, for example, as 125126596 + 127486681 = 11186^2 + 11291^2 .

It is not a de Polignac number, because 252613277 - 28 = 252613021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252613247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18308 + ... + 28989.

It is an arithmetic number, because the mean of its divisors is an integer number (24713205).

Almost surely, 2252613277 is an apocalyptic number.

It is an amenable number.

252613277 is a deficient number, since it is larger than the sum of its proper divisors (43945183).

252613277 is a wasteful number, since it uses less digits than its factorization.

252613277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47420 (or 47413 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 252613277 is about 15893.8125382175. The cubic root of 252613277 is about 632.1479359467.

The spelling of 252613277 in words is "two hundred fifty-two million, six hundred thirteen thousand, two hundred seventy-seven".

Divisors: 1 7 49 109 763 5341 47297 331079 2317553 5155373 36087611 252613277