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242352040 = 23572532333
BaseRepresentation
bin11100111000111…
…11111110101000
3121220000202111111
432130133332220
5444020231130
640014240104
76001646500
oct1634377650
9556022444
10242352040
1111488a747
12691b6034
133b295598
1424288a00
151642302a
hexe71ffa8

242352040 has 96 divisors (see below), whose sum is σ = 646564680. Its totient is φ = 81489408.

The previous prime is 242352029. The next prime is 242352083. The reversal of 242352040 is 40253242.

It can be written as a sum of positive squares in 4 ways, for example, as 200335716 + 42016324 = 14154^2 + 6482^2 .

It is a super-2 number, since 2×2423520402 = 117469022584323200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102714 + ... + 105046.

Almost surely, 2242352040 is an apocalyptic number.

242352040 is a gapful number since it is divisible by the number (20) 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 242352040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323282340).

242352040 is an abundant number, since it is smaller than the sum of its proper divisors (404212640).

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

242352040 is a wasteful number, since it uses less digits than its factorization.

242352040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411 (or 2400 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 242352040 is about 15567.6600682312. The cubic root of 242352040 is about 623.4699984085.

The spelling of 242352040 in words is "two hundred forty-two million, three hundred fifty-two thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 53 56 70 98 106 140 196 212 245 265 280 371 392 424 490 530 742 980 1060 1484 1855 1960 2120 2333 2597 2968 3710 4666 5194 7420 9332 10388 11665 12985 14840 16331 18664 20776 23330 25970 32662 46660 51940 65324 81655 93320 103880 114317 123649 130648 163310 228634 247298 326620 457268 494596 571585 618245 653240 865543 914536 989192 1143170 1236490 1731086 2286340 2472980 3462172 4327715 4572680 4945960 6058801 6924344 8655430 12117602 17310860 24235204 30294005 34621720 48470408 60588010 121176020 242352040