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1031101242 = 23809212423
BaseRepresentation
bin111101011101010…
…101101100111010
32122212012100222220
4331131111230322
54102430214432
6250152024510
734360134033
oct7535255472
92585170886
101031101242
1148a036696
12249392136
131358094a2
149ad25a8a
15607c672c
hex3d755b3a

1031101242 has 16 divisors (see below), whose sum is σ = 2064761280. Its totient is φ = 343273952.

The previous prime is 1031101241. The next prime is 1031101303. The reversal of 1031101242 is 2421011301.

It is not an unprimeable number, because it can be changed into a prime (1031101241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101358 + ... + 111065.

It is an arithmetic number, because the mean of its divisors is an integer number (129047580).

Almost surely, 21031101242 is an apocalyptic number.

1031101242 is an abundant number, since it is smaller than the sum of its proper divisors (1033660038).

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

1031101242 is a wasteful number, since it uses less digits than its factorization.

1031101242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213237.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1031101242 is about 32110.7652042115. The cubic root of 1031101242 is about 1010.2614236855.

Adding to 1031101242 its reverse (2421011301), we get a palindrome (3452112543).

The spelling of 1031101242 in words is "one billion, thirty-one million, one hundred one thousand, two hundred forty-two".

Divisors: 1 2 3 6 809 1618 2427 4854 212423 424846 637269 1274538 171850207 343700414 515550621 1031101242