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53146752 = 273138403
BaseRepresentation
bin1100101010111…
…1010010000000
310201000010122020
43022233102000
5102101144002
65135041440
71213511541
oct312572200
9121003566
1053146752
1127aaaa3a
1215970280
13b01a7a9
1470b64c8
1549ec2bc
hex32af480

53146752 has 32 divisors (see below), whose sum is σ = 141172080. Its totient is φ = 17715456.

The previous prime is 53146747. The next prime is 53146771. The reversal of 53146752 is 25764135.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68818 + ... + 69585.

Almost surely, 253146752 is an apocalyptic number.

It is an amenable number.

53146752 is an abundant number, since it is smaller than the sum of its proper divisors (88025328).

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

53146752 is a wasteful number, since it uses less digits than its factorization.

53146752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138420 (or 138408 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 53146752 is about 7290.1818907350. The cubic root of 53146752 is about 375.9749492893.

The spelling of 53146752 in words is "fifty-three million, one hundred forty-six thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 384 138403 276806 415209 553612 830418 1107224 1660836 2214448 3321672 4428896 6643344 8857792 13286688 17715584 26573376 53146752