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57246772 = 22111968477
BaseRepresentation
bin1101101001100…
…0010000110100
310222201102210211
43122120100310
5104123344042
65402555204
71263406132
oct332302064
9128642724
1057246772
112a350390
1217208b04
13bb24a3b
147862752
15505c017
hex3698434

57246772 has 24 divisors (see below), whose sum is σ = 115043040. Its totient is φ = 24651360.

The previous prime is 57246767. The next prime is 57246773. The reversal of 57246772 is 27764275.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57246773) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 33403 + ... + 35074.

It is an arithmetic number, because the mean of its divisors is an integer number (4793460).

Almost surely, 257246772 is an apocalyptic number.

It is an amenable number.

57246772 is an abundant number, since it is smaller than the sum of its proper divisors (57796268).

57246772 is a wasteful number, since it uses less digits than its factorization.

57246772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68511 (or 68509 counting only the distinct ones).

The product of its digits is 164640, while the sum is 40.

The square root of 57246772 is about 7566.1596599596. The cubic root of 57246772 is about 385.4046950470.

The spelling of 57246772 in words is "fifty-seven million, two hundred forty-six thousand, seven hundred seventy-two".

Divisors: 1 2 4 11 19 22 38 44 76 209 418 836 68477 136954 273908 753247 1301063 1506494 2602126 3012988 5204252 14311693 28623386 57246772