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242537652 = 22347215277
BaseRepresentation
bin11100111010011…
…01010010110100
3121220101012010000
432131031102310
5444042201102
640022231300
76003351600
oct1635152264
9556335100
10242537652
111149a7145
1269285530
133b32bc06
14242d6500
151645d01c
hexe74d4b4

242537652 has 90 divisors (see below), whose sum is σ = 737606562. Its totient is φ = 69291936.

The previous prime is 242537629. The next prime is 242537681. The reversal of 242537652 is 256735242.

It can be written as a sum of positive squares in only one way, i.e., 155600676 + 86936976 = 12474^2 + 9324^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 8238 + ... + 23514.

Almost surely, 2242537652 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 242537652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368803281).

242537652 is an abundant number, since it is smaller than the sum of its proper divisors (495068910).

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

242537652 is a wasteful number, since it uses less digits than its factorization.

242537652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15307 (or 15289 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 242537652 is about 15573.6203883362. The cubic root of 242537652 is about 623.6291250280.

The spelling of 242537652 in words is "two hundred forty-two million, five hundred thirty-seven thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 49 54 63 81 84 98 108 126 147 162 189 196 252 294 324 378 441 567 588 756 882 1134 1323 1764 2268 2646 3969 5292 7938 15277 15876 30554 45831 61108 91662 106939 137493 183324 213878 274986 320817 412479 427756 549972 641634 748573 824958 962451 1237437 1283268 1497146 1649916 1924902 2245719 2474874 2887353 2994292 3849804 4491438 4949748 5774706 6737157 8662059 8982876 11549412 13474314 17324118 20211471 26948628 34648236 40422942 60634413 80845884 121268826 242537652