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1012011442 = 21338923517
BaseRepresentation
bin111100010100100…
…001000110110010
32121112021111201021
4330110201012302
54033033331232
6244230530054
734035645451
oct7424410662
92545244637
101012011442
1147a2881a2
12242b0692a
13131884450
1498596b98
155dca5397
hex3c5211b2

1012011442 has 8 divisors (see below), whose sum is σ = 1634787756. Its totient is φ = 467082192.

The previous prime is 1012011437. The next prime is 1012011443. The reversal of 1012011442 is 2441102101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 913187961 + 98823481 = 30219^2 + 9941^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1012011443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19461733 + ... + 19461784.

Almost surely, 21012011442 is an apocalyptic number.

1012011442 is a deficient number, since it is larger than the sum of its proper divisors (622776314).

1012011442 is a wasteful number, since it uses less digits than its factorization.

1012011442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38923532.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1012011442 is about 31812.1272787596. The cubic root of 1012011442 is about 1003.9878895964.

Adding to 1012011442 its reverse (2441102101), we get a palindrome (3453113543).

The spelling of 1012011442 in words is "one billion, twelve million, eleven thousand, four hundred forty-two".

Divisors: 1 2 13 26 38923517 77847034 506005721 1012011442