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72632252 = 227112310253
BaseRepresentation
bin1000101010001…
…00011110111100
312001200002201102
410111010132330
5122043213002
611112432232
71541235560
oct425043674
9161602642
1072632252
1137aa9760
12203a8678
1312080984
1499096a0
15659aa02
hex45447bc

72632252 has 48 divisors (see below), whose sum is σ = 165376512. Its totient is φ = 27065280.

The previous prime is 72632239. The next prime is 72632267. The reversal of 72632252 is 25223627.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 1958 + ... + 12210.

It is an arithmetic number, because the mean of its divisors is an integer number (3445344).

Almost surely, 272632252 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 72632252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82688256).

72632252 is an abundant number, since it is smaller than the sum of its proper divisors (92744260).

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

72632252 is a wasteful number, since it uses less digits than its factorization.

72632252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10298 (or 10296 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 72632252 is about 8522.4557493718. The cubic root of 72632252 is about 417.2309371101.

Adding to 72632252 its reverse (25223627), we get a palindrome (97855879).

The spelling of 72632252 in words is "seventy-two million, six hundred thirty-two thousand, two hundred fifty-two".

Divisors: 1 2 4 7 11 14 22 23 28 44 46 77 92 154 161 253 308 322 506 644 1012 1771 3542 7084 10253 20506 41012 71771 112783 143542 225566 235819 287084 451132 471638 789481 943276 1578962 1650733 2594009 3157924 3301466 5188018 6602932 10376036 18158063 36316126 72632252