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252020461 = 71117192529
BaseRepresentation
bin11110000010110…
…00011011101101
3122120012222002011
433001120123231
51004004123321
641001401221
76150065350
oct1701303355
9576188064
10252020461
1111a293780
1270499211
134029c244
1425684297
15171d2ae1
hexf0586ed

252020461 has 16 divisors (see below), whose sum is σ = 332691840. Its totient is φ = 184826880.

The previous prime is 252020443. The next prime is 252020479. The reversal of 252020461 is 164020252.

It is an interprime number because it is at equal distance from previous prime (252020443) and next prime (252020479).

It is not a de Polignac number, because 252020461 - 25 = 252020429 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 (252020261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94956 + ... + 97573.

It is an arithmetic number, because the mean of its divisors is an integer number (20793240).

Almost surely, 2252020461 is an apocalyptic number.

It is an amenable number.

252020461 is a deficient number, since it is larger than the sum of its proper divisors (80671379).

252020461 is a wasteful number, since it uses less digits than its factorization.

252020461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192564.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 252020461 is about 15875.1523142299. The cubic root of 252020461 is about 631.6530544133.

The spelling of 252020461 in words is "two hundred fifty-two million, twenty thousand, four hundred sixty-one".

Divisors: 1 7 11 17 77 119 187 1309 192529 1347703 2117819 3272993 14824733 22910951 36002923 252020461