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1302242031 = 32144693559
BaseRepresentation
bin100110110011110…
…1010001011101111
310100202101202020100
41031213222023233
510131333221111
6333115322143
744161605666
oct11547521357
93322352210
101302242031
11609099792
12304150353
13179a4161c
14c4d45ddd
15794d4756
hex4d9ea2ef

1302242031 has 6 divisors (see below), whose sum is σ = 1881016280. Its totient is φ = 868161348.

The previous prime is 1302242009. The next prime is 1302242059. The reversal of 1302242031 is 1302422031.

It is not a de Polignac number, because 1302242031 - 25 = 1302241999 is a prime.

It is a super-2 number, since 2×13022420312 = 3391668614606009922, 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 = 1302241995 and 1302242013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302232031) 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 5 ways as a sum of consecutive naturals, for example, 72346771 + ... + 72346788.

Almost surely, 21302242031 is an apocalyptic number.

1302242031 is a deficient number, since it is larger than the sum of its proper divisors (578774249).

1302242031 is a wasteful number, since it uses less digits than its factorization.

1302242031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144693565 (or 144693562 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1302242031 is about 36086.5907367266. The cubic root of 1302242031 is about 1092.0199423762.

Adding to 1302242031 its reverse (1302422031), we get a palindrome (2604664062).

The spelling of 1302242031 in words is "one billion, three hundred two million, two hundred forty-two thousand, thirty-one".

Divisors: 1 3 9 144693559 434080677 1302242031