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242201140 = 22531390647
BaseRepresentation
bin11100110111110…
…11001000110100
3121212202002111121
432123323020310
5444000414030
640011113324
76000450526
oct1633731064
9555662447
10242201140
11114797335
1269142844
133b2419ac
1424249a16
15163e347a
hexe6fb234

242201140 has 24 divisors (see below), whose sum is σ = 525030912. Its totient is φ = 93755040.

The previous prime is 242201137. The next prime is 242201177. The reversal of 242201140 is 41102242.

It is a super-2 number, since 2×2422011402 = 117322784434599200, 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 7 ways as a sum of consecutive naturals, for example, 194704 + ... + 195943.

It is an arithmetic number, because the mean of its divisors is an integer number (21876288).

Almost surely, 2242201140 is an apocalyptic number.

242201140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242201140 is an abundant number, since it is smaller than the sum of its proper divisors (282829772).

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

242201140 is a wasteful number, since it uses less digits than its factorization.

242201140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390687 (or 390685 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 242201140 is about 15562.8127277816. The cubic root of 242201140 is about 623.3405707708.

Adding to 242201140 its reverse (41102242), we get a palindrome (283303382).

The spelling of 242201140 in words is "two hundred forty-two million, two hundred one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 390647 781294 1562588 1953235 3906470 7812940 12110057 24220114 48440228 60550285 121100570 242201140