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1401443030 = 251316366137
BaseRepresentation
bin101001110001000…
…0101001011010110
310121200001200102102
41103202011023112
510332232134110
6351021442102
746505032511
oct12342051326
93550050372
101401443030
1165a094989
12331410332
13194465540
14d41a9d78
158307c5a5
hex538852d6

1401443030 has 32 divisors (see below), whose sum is σ = 2733351264. Its totient is φ = 514273536.

The previous prime is 1401443023. The next prime is 1401443033. The reversal of 1401443030 is 303441041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1401442993 and 1401443011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401443033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11879 + ... + 54258.

It is an arithmetic number, because the mean of its divisors is an integer number (85417227).

Almost surely, 21401443030 is an apocalyptic number.

1401443030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1401443030 is a deficient number, since it is larger than the sum of its proper divisors (1331908234).

1401443030 is a wasteful number, since it uses less digits than its factorization.

1401443030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66320.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1401443030 is about 37435.8522007981. The cubic root of 1401443030 is about 1119.0731676485.

Adding to 1401443030 its reverse (303441041), we get a palindrome (1704884071).

The spelling of 1401443030 in words is "one billion, four hundred one million, four hundred forty-three thousand, thirty".

Divisors: 1 2 5 10 13 26 65 130 163 326 815 1630 2119 4238 10595 21190 66137 132274 330685 661370 859781 1719562 4298905 8597810 10780331 21560662 53901655 107803310 140144303 280288606 700721515 1401443030