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53308472 = 2372239569
BaseRepresentation
bin1100101101011…
…0110000111000
310201022100110212
43023112300320
5102121332342
65142330252
71215054200
oct313266070
9121270425
1053308472
1128100498
1215a29988
13b076299
147119400
154a30182
hex32d6c38

53308472 has 48 divisors (see below), whose sum is σ = 116964000. Its totient is φ = 22710912.

The previous prime is 53308441. The next prime is 53308511. The reversal of 53308472 is 27480335.

It is a happy number.

53308472 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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93404 + ... + 93972.

It is an arithmetic number, because the mean of its divisors is an integer number (2436750).

Almost surely, 253308472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53308472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58482000).

53308472 is an abundant number, since it is smaller than the sum of its proper divisors (63655528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53308472 is a wasteful number, since it uses less digits than its factorization.

53308472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 817 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 53308472 is about 7301.2650958584. The cubic root of 53308472 is about 376.3559139359.

The spelling of 53308472 in words is "fifty-three million, three hundred eight thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 239 392 478 569 956 1138 1673 1912 2276 3346 3983 4552 6692 7966 11711 13384 15932 23422 27881 31864 46844 55762 93688 111524 135991 223048 271982 543964 951937 1087928 1903874 3807748 6663559 7615496 13327118 26654236 53308472