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557091752 = 23747211661
BaseRepresentation
bin100001001101001…
…000101110101000
31102211021012012212
4201031020232220
52120103414002
6131140224252
716543126130
oct4115105650
91384235185
10557091752
11266511308
1213669b088
138b5543b9
1453db7ac0
1533d94352
hex21348ba8

557091752 has 32 divisors (see below), whose sum is σ = 1219173120. Its totient is φ = 233672640.

The previous prime is 557091749. The next prime is 557091757. The reversal of 557091752 is 257190755.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (557091757) 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, 103199 + ... + 108462.

It is an arithmetic number, because the mean of its divisors is an integer number (38099160).

Almost surely, 2557091752 is an apocalyptic number.

It is an amenable number.

557091752 is an abundant number, since it is smaller than the sum of its proper divisors (662081368).

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

557091752 is a wasteful number, since it uses less digits than its factorization.

557091752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211721 (or 211717 counting only the distinct ones).

The product of its (nonzero) digits is 110250, while the sum is 41.

The square root of 557091752 is about 23602.7911908740. The cubic root of 557091752 is about 822.8277113568.

The spelling of 557091752 in words is "five hundred fifty-seven million, ninety-one thousand, seven hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 47 56 94 188 329 376 658 1316 2632 211661 423322 846644 1481627 1693288 2963254 5926508 9948067 11853016 19896134 39792268 69636469 79584536 139272938 278545876 557091752