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242411820 = 22357311779
BaseRepresentation
bin11100111001011…
…10100100101100
3121220010210111120
432130232210230
5444024134240
640015420540
76002316000
oct1634564454
9556123446
10242411820
11114920652
1269224750
133b2b6861
14242a2700
1516435ad0
hexe72e92c

242411820 has 96 divisors (see below), whose sum is σ = 791616000. Its totient is φ = 55403712.

The previous prime is 242411809. The next prime is 242411831. The reversal of 242411820 is 28114242.

It is an interprime number because it is at equal distance from previous prime (242411809) and next prime (242411831).

It is a super-5 number, since 5×2424118205 (a number of 43 digits) contains 55555 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14691 + ... + 26469.

It is an arithmetic number, because the mean of its divisors is an integer number (8246000).

Almost surely, 2242411820 is an apocalyptic number.

242411820 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 242411820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395808000).

242411820 is an abundant number, since it is smaller than the sum of its proper divisors (549204180).

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

242411820 is a wasteful number, since it uses less digits than its factorization.

242411820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11812 (or 11796 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 242411820 is about 15569.5799557984. The cubic root of 242411820 is about 623.5212571372.

The spelling of 242411820 in words is "two hundred forty-two million, four hundred eleven thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 343 420 490 588 686 735 980 1029 1372 1470 1715 2058 2940 3430 4116 5145 6860 10290 11779 20580 23558 35337 47116 58895 70674 82453 117790 141348 164906 176685 235580 247359 329812 353370 412265 494718 577171 706740 824530 989436 1154342 1236795 1649060 1731513 2308684 2473590 2885855 3463026 4040197 4947180 5771710 6926052 8080394 8657565 11543420 12120591 16160788 17315130 20200985 24241182 34630260 40401970 48482364 60602955 80803940 121205910 242411820