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252806134 = 2719250021
BaseRepresentation
bin11110001000110…
…00001111110110
3122121200212211011
433010120033312
51004204244014
641030302434
76156550060
oct1704301766
9577625734
10252806134
1111a77aa99
12707b7a1a
13404b5a39
142580a730
15172da7c4
hexf1183f6

252806134 has 24 divisors (see below), whose sum is σ = 457401168. Its totient is φ = 102641040.

The previous prime is 252806129. The next prime is 252806189. The reversal of 252806134 is 431608252.

It is a junction number, because it is equal to n+sod(n) for n = 252806096 and 252806105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19957 + ... + 30064.

It is an arithmetic number, because the mean of its divisors is an integer number (19058382).

Almost surely, 2252806134 is an apocalyptic number.

252806134 is a deficient number, since it is larger than the sum of its proper divisors (204595034).

252806134 is a wasteful number, since it uses less digits than its factorization.

252806134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50068 (or 50049 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 252806134 is about 15899.8784272082. The cubic root of 252806134 is about 632.3087656334.

The spelling of 252806134 in words is "two hundred fifty-two million, eight hundred six thousand, one hundred thirty-four".

Divisors: 1 2 7 14 19 38 133 266 361 722 2527 5054 50021 100042 350147 700294 950399 1900798 6652793 13305586 18057581 36115162 126403067 252806134