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252837403 = 7213396919
BaseRepresentation
bin11110001000111…
…11111000011011
3122121202110201021
433010133320123
51004211244103
641031103311
76160040200
oct1704377033
9577673637
10252837403
1111a7a1535
1270811b37
13404c7040
1425817ca7
15172e4bbd
hexf11fe1b

252837403 has 12 divisors (see below), whose sum is σ = 316742160. Its totient is φ = 200046672.

The previous prime is 252837397. The next prime is 252837407. The reversal of 252837403 is 304738252.

It is a de Polignac number, because none of the positive numbers 2k-252837403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252837407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197823 + ... + 199096.

It is an arithmetic number, because the mean of its divisors is an integer number (26395180).

Almost surely, 2252837403 is an apocalyptic number.

252837403 is a deficient number, since it is larger than the sum of its proper divisors (63904757).

252837403 is a wasteful number, since it uses less digits than its factorization.

252837403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396946 (or 396939 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 252837403 is about 15900.8617062095. The cubic root of 252837403 is about 632.3348341566.

The spelling of 252837403 in words is "two hundred fifty-two million, eight hundred thirty-seven thousand, four hundred three".

Divisors: 1 7 13 49 91 637 396919 2778433 5159947 19449031 36119629 252837403