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1201241013 = 371992231289
BaseRepresentation
bin100011110011001…
…0111101110110101
310002201100100212220
41013212113232311
54430004203023
6315110432553
741524244250
oct10746275665
93081310786
101201241013
11567084175
12296362759
13161b3a2cb
14b5774097
15706d33e3
hex47997bb5

1201241013 has 32 divisors (see below), whose sum is σ = 1849344000. Its totient is φ = 679383936.

The previous prime is 1201241011. The next prime is 1201241021. The reversal of 1201241013 is 3101421021.

It is not a de Polignac number, because 1201241013 - 21 = 1201241011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201240983 and 1201241001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201241011) 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 31 ways as a sum of consecutive naturals, for example, 931273 + ... + 932561.

It is an arithmetic number, because the mean of its divisors is an integer number (57792000).

Almost surely, 21201241013 is an apocalyptic number.

It is an amenable number.

1201241013 is a deficient number, since it is larger than the sum of its proper divisors (648102987).

1201241013 is a wasteful number, since it uses less digits than its factorization.

1201241013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721.

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

The square root of 1201241013 is about 34658.9240023403. The cubic root of 1201241013 is about 1063.0247688339.

Adding to 1201241013 its reverse (3101421021), we get a palindrome (4302662034).

The spelling of 1201241013 in words is "one billion, two hundred one million, two hundred forty-one thousand, thirteen".

Divisors: 1 3 7 21 199 223 597 669 1289 1393 1561 3867 4179 4683 9023 27069 44377 133131 256511 287447 310639 769533 862341 931917 1795577 2012129 5386731 6036387 57201953 171605859 400413671 1201241013