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242002430 = 251931181227
BaseRepresentation
bin11100110110010…
…10100111111110
3121212100222220222
432123022213332
5443423034210
640002541342
75665662305
oct1633124776
9555328828
10242002430
1111467100a
1269067852
133b1a2407
14241d743c
15163a4655
hexe6ca9fe

242002430 has 64 divisors (see below), whose sum is σ = 478033920. Its totient is φ = 87868800.

The previous prime is 242002427. The next prime is 242002447. The reversal of 242002430 is 34200242.

It is a super-2 number, since 2×2420024302 = 117130352251809800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242002399 and 242002408.

It is a congruent number.

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, 1065977 + ... + 1066203.

It is an arithmetic number, because the mean of its divisors is an integer number (7469280).

Almost surely, 2242002430 is an apocalyptic number.

242002430 is a deficient number, since it is larger than the sum of its proper divisors (236031490).

242002430 is a wasteful number, since it uses less digits than its factorization.

242002430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 242002430 is about 15556.4272890661. The cubic root of 242002430 is about 623.1700542401.

Adding to 242002430 its reverse (34200242), we get a palindrome (276202672).

The spelling of 242002430 in words is "two hundred forty-two million, two thousand, four hundred thirty".

Divisors: 1 2 5 10 19 31 38 62 95 155 181 190 227 310 362 454 589 905 1135 1178 1810 2270 2945 3439 4313 5611 5890 6878 7037 8626 11222 14074 17195 21565 28055 34390 35185 41087 43130 56110 70370 82174 106609 133703 205435 213218 267406 410870 533045 668515 780653 1066090 1273697 1337030 1561306 2547394 3903265 6368485 7806530 12736970 24200243 48400486 121001215 242002430