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242122524 = 223723137359
BaseRepresentation
bin11100110111001…
…11111100011100
3121212121002122220
432123213330130
5443440410044
640005305340
76000002400
oct1633477434
9555532586
10242122524
11114743266
1269105250
133b214c87
1424229100
15163ca019
hexe6e7f1c

242122524 has 144 divisors (see below), whose sum is σ = 698664960. Its totient is φ = 64955520.

The previous prime is 242122499. The next prime is 242122577. The reversal of 242122524 is 425221242.

It is a super-3 number, since 3×2421225243 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242122494 and 242122503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 674257 + ... + 674615.

It is an arithmetic number, because the mean of its divisors is an integer number (4851840).

Almost surely, 2242122524 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 242122524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349332480).

242122524 is an abundant number, since it is smaller than the sum of its proper divisors (456542436).

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

242122524 is a wasteful number, since it uses less digits than its factorization.

242122524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 439 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 242122524 is about 15560.2867582831. The cubic root of 242122524 is about 623.2731201587.

Adding to 242122524 its reverse (425221242), we get a palindrome (667343766).

The spelling of 242122524 in words is "two hundred forty-two million, one hundred twenty-two thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 31 37 42 49 62 74 84 93 98 111 124 147 148 186 196 217 222 259 294 359 372 434 444 518 588 651 718 777 868 1036 1077 1147 1302 1436 1519 1554 1813 2154 2294 2513 2604 3038 3108 3441 3626 4308 4557 4588 5026 5439 6076 6882 7252 7539 8029 9114 10052 10878 11129 13283 13764 15078 16058 17591 18228 21756 22258 24087 26566 30156 32116 33387 35182 39849 44516 48174 52773 53132 56203 66774 70364 77903 79698 92981 96348 105546 112406 133548 155806 159396 168609 185962 211092 224812 233709 278943 311612 337218 371924 411773 467418 545321 557886 650867 674436 823546 934836 1090642 1115772 1235319 1301734 1635963 1647092 1952601 2181284 2470638 2603468 2882411 3271926 3905202 4941276 5764822 6543852 7810404 8647233 11529644 17294466 20176877 34588932 40353754 60530631 80707508 121061262 242122524