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242101031 = 1133795653
BaseRepresentation
bin11100110111000…
…10101100100111
3121212120000011212
432123202230213
5443434213111
640005022035
75666552624
oct1633425447
9555500155
10242101031
111147290a7
12690b491b
133b208263
142422134b
15163c398b
hexe6e2b27

242101031 has 8 divisors (see below), whose sum is σ = 244931280. Its totient is φ = 239283072.

The previous prime is 242100997. The next prime is 242101033. The reversal of 242101031 is 130101242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242101031 - 210 = 242100007 is a prime.

It is a super-2 number, since 2×2421010312 = 117225818422525922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242100997 and 242101015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242101033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40001 + ... + 45653.

It is an arithmetic number, because the mean of its divisors is an integer number (30616410).

Almost surely, 2242101031 is an apocalyptic number.

242101031 is a deficient number, since it is larger than the sum of its proper divisors (2830249).

242101031 is a wasteful number, since it uses less digits than its factorization.

242101031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6145.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 242101031 is about 15559.5961065832. The cubic root of 242101031 is about 623.2546771471.

Adding to 242101031 its reverse (130101242), we get a palindrome (372202273).

The spelling of 242101031 in words is "two hundred forty-two million, one hundred one thousand, thirty-one".

Divisors: 1 113 379 5653 42827 638789 2142487 242101031