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15231144130 = 2531734491499
BaseRepresentation
bin11100010111101100…
…01101000011000010
31110022111002021211021
432023312031003002
5222143133103010
610555212140054
71046304406006
oct161366150302
943274067737
1015231144130
116506647024
122b50a6762a
1315896b9027
14a46bd2706
155e22718da
hex38bd8d0c2

15231144130 has 64 divisors (see below), whose sum is σ = 28771200000. Its totient is φ = 5798338560.

The previous prime is 15231144113. The next prime is 15231144133. The reversal of 15231144130 is 3144113251.

It is a junction number, because it is equal to n+sod(n) for n = 15231144095 and 15231144104.

It is not an unprimeable number, because it can be changed into a prime (15231144133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10160121 + ... + 10161619.

It is an arithmetic number, because the mean of its divisors is an integer number (449550000).

Almost surely, 215231144130 is an apocalyptic number.

15231144130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15231144130 is a deficient number, since it is larger than the sum of its proper divisors (13540055870).

15231144130 is a wasteful number, since it uses less digits than its factorization.

15231144130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 15231144130 its reverse (3144113251), we get a palindrome (18375257381).

The spelling of 15231144130 in words is "fifteen billion, two hundred thirty-one million, one hundred forty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 31 62 73 146 155 310 365 449 730 898 1499 2245 2263 2998 4490 4526 7495 11315 13919 14990 22630 27838 32777 46469 65554 69595 92938 109427 139190 163885 218854 232345 327770 464690 547135 673051 1016087 1094270 1346102 2032174 3365255 3392237 5080435 6730510 6784474 10160870 16961185 20864581 33922370 41729162 49132723 98265446 104322905 208645810 245663615 491327230 1523114413 3046228826 7615572065 15231144130