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1240030012 = 221323846731
BaseRepresentation
bin100100111101001…
…0101101100111100
310012102100001101111
41021322111230330
510014421430022
6323014051404
742505036564
oct11172255474
93172301344
101240030012
11586a679a1
122a7349b64
13169b9b890
14ba98dda4
1573ce6477
hex49e95b3c

1240030012 has 12 divisors (see below), whose sum is σ = 2336979736. Its totient is φ = 572321520.

The previous prime is 1240030007. The next prime is 1240030061. The reversal of 1240030012 is 2100300421.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1240029974 and 1240030001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11923314 + ... + 11923417.

Almost surely, 21240030012 is an apocalyptic number.

It is an amenable number.

1240030012 is a deficient number, since it is larger than the sum of its proper divisors (1096949724).

1240030012 is a wasteful number, since it uses less digits than its factorization.

1240030012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23846748 (or 23846746 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1240030012 is about 35214.0598625038. The cubic root of 1240030012 is about 1074.3457383933.

Adding to 1240030012 its reverse (2100300421), we get a palindrome (3340330433).

The spelling of 1240030012 in words is "one billion, two hundred forty million, thirty thousand, twelve".

Divisors: 1 2 4 13 26 52 23846731 47693462 95386924 310007503 620015006 1240030012