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252810542 = 21915144059
BaseRepresentation
bin11110001000110…
…01010100101110
3122121201002212102
433010121110232
51004204414132
641030335102
76156565655
oct1704312456
9577632772
10252810542
1111a783336
12707ba492
13404b7a4a
142580c19c
15172dbc62
hexf11952e

252810542 has 16 divisors (see below), whose sum is σ = 401827200. Its totient is φ = 118956600.

The previous prime is 252810541. The next prime is 252810557. The reversal of 252810542 is 245018252.

252810542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252810541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16292 + ... + 27767.

It is an arithmetic number, because the mean of its divisors is an integer number (25114200).

Almost surely, 2252810542 is an apocalyptic number.

252810542 is a deficient number, since it is larger than the sum of its proper divisors (149016658).

252810542 is a wasteful number, since it uses less digits than its factorization.

252810542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44231.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 252810542 is about 15900.0170440160. The cubic root of 252810542 is about 632.3124406508.

Adding to 252810542 its reverse (245018252), we get a palindrome (497828794).

It can be divided in two parts, 252810 and 542, that added together give a palindrome (253352).

The spelling of 252810542 in words is "two hundred fifty-two million, eight hundred ten thousand, five hundred forty-two".

Divisors: 1 2 19 38 151 302 2869 5738 44059 88118 837121 1674242 6652909 13305818 126405271 252810542