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242202213 = 321117236257
BaseRepresentation
bin11100110111110…
…11011001100101
3121212202010222100
432123323121211
5444000432323
640011122313
76000453621
oct1633733145
9555663870
10242202213
11114798120
1269143399
133b242326
142424a181
15163e3943
hexe6fb665

242202213 has 48 divisors (see below), whose sum is σ = 421739136. Its totient is φ = 132126720.

The previous prime is 242202203. The next prime is 242202221. The reversal of 242202213 is 312202242.

It is not a de Polignac number, because 242202213 - 213 = 242194021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242202203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35581 + ... + 41837.

It is an arithmetic number, because the mean of its divisors is an integer number (8786232).

Almost surely, 2242202213 is an apocalyptic number.

242202213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

242202213 is a deficient number, since it is larger than the sum of its proper divisors (179536923).

242202213 is a wasteful number, since it uses less digits than its factorization.

242202213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314 (or 6311 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 242202213 is about 15562.8472009462. The cubic root of 242202213 is about 623.3414912777.

Adding to 242202213 its reverse (312202242), we get a palindrome (554404455).

The spelling of 242202213 in words is "two hundred forty-two million, two hundred two thousand, two hundred thirteen".

Divisors: 1 3 9 11 17 23 33 51 69 99 153 187 207 253 391 561 759 1173 1683 2277 3519 4301 6257 12903 18771 38709 56313 68827 106369 143911 206481 319107 431733 619443 957321 1170059 1295199 1583021 2446487 3510177 4749063 7339461 10530531 14247189 22018383 26911357 80734071 242202213