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229246072 = 231143471289
BaseRepresentation
bin11011010101000…
…00010001111000
3120222100220111021
431222200101320
5432141333242
634425312224
75452362616
oct1552402170
9528326437
10229246072
11108448a70
1264935674
1338657083
14226366b6
15151d4b67
hexdaa0478

229246072 has 64 divisors (see below), whose sum is σ = 490406400. Its totient is φ = 99536640.

The previous prime is 229246057. The next prime is 229246103. The reversal of 229246072 is 270642922.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177204 + ... + 178492.

It is an arithmetic number, because the mean of its divisors is an integer number (7662600).

Almost surely, 2229246072 is an apocalyptic number.

229246072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229246072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245203200).

229246072 is an abundant number, since it is smaller than the sum of its proper divisors (261160328).

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

229246072 is a wasteful number, since it uses less digits than its factorization.

229246072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396 (or 1392 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 229246072 is about 15140.8742151832. The cubic root of 229246072 is about 612.0223766150.

Adding to 229246072 its reverse (270642922), we get a palindrome (499888994).

The spelling of 229246072 in words is "two hundred twenty-nine million, two hundred forty-six thousand, seventy-two".

Divisors: 1 2 4 8 11 22 43 44 47 86 88 94 172 188 344 376 473 517 946 1034 1289 1892 2021 2068 2578 3784 4042 4136 5156 8084 10312 14179 16168 22231 28358 44462 55427 56716 60583 88924 110854 113432 121166 177848 221708 242332 443416 484664 609697 666413 1219394 1332826 2438788 2605069 2665652 4877576 5210138 5331304 10420276 20840552 28655759 57311518 114623036 229246072