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32872228249 = 725924392
BaseRepresentation
bin11110100111010101…
…100110010110011001
310010211220220012211011
4132213111212112121
51014310242300444
623033513533521
72242414221100
oct364725462631
9103756805734
1032872228249
1112a39574693
126454a142a1
13313b461143
14183bab1037
15cc5d7e734
hex7a7566599

32872228249 has 27 divisors (see below), whose sum is σ = 38987036757. Its totient is φ = 27635538168.

The previous prime is 32872228171. The next prime is 32872228273. The reversal of 32872228249 is 94282227823.

The square root of 32872228249 is 181307.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 32872228249 - 27 = 32872228121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32872228349) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 74879572 + ... + 74880010.

Almost surely, 232872228249 is an apocalyptic number.

32872228249 is the 181307-th square number.

32872228249 is the 90654-th centered octagonal number.

It is an amenable number.

32872228249 is a deficient number, since it is larger than the sum of its proper divisors (6114808508).

32872228249 is an frugal number, since it uses more digits than its factorization.

32872228249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010 (or 505 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

Multiplying 32872228249 by its sum of digits (49), we get a square (1610739184201 = 12691492).

32872228249 divided by its sum of digits (49) gives a square (670861801 = 259012).

It can be divided in two parts, 32872 and 228249, that added together give a square (261121 = 5112).

The spelling of 32872228249 in words is "thirty-two billion, eight hundred seventy-two million, two hundred twenty-eight thousand, two hundred forty-nine".

Divisors: 1 7 49 59 413 439 2891 3073 3481 21511 24367 25901 170569 181307 192721 1269149 1349047 1528159 9443329 10697113 11370539 74879791 79593773 557156411 670861801 4696032607 32872228249