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231144230003232 = 25371326458817537
BaseRepresentation
bin110100100011100101110101…
…101110001010001000100000
31010022102011122210221112212010
4310203211311232022020200
5220244031340340100412
62135334105432432520
766454422332404230
oct6443456556121040
91108364583845763
10231144230003232
1167716798a12477
1221b11372b48740
139bc8a65a0ac30
14411162474bcc0
151bac8d285a33c
hexd23975b8a220

231144230003232 has 96 divisors (see below), whose sum is σ = 746773666192512. Its totient is φ = 60961115602944.

The previous prime is 231144230003207. The next prime is 231144230003233. The reversal of 231144230003232 is 232300032441132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 231144230003232.

It is not an unprimeable number, because it can be changed into a prime (231144230003233) 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, 13229400033 + ... + 13229417504.

It is an arithmetic number, because the mean of its divisors is an integer number (7778892356172).

Almost surely, 2231144230003232 is an apocalyptic number.

It is an amenable number.

231144230003232 is an abundant number, since it is smaller than the sum of its proper divisors (515629436189280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231144230003232 is a wasteful number, since it uses less digits than its factorization.

231144230003232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26458817570 (or 26458817562 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 231144230003232 its reverse (232300032441132), we get a palindrome (463444262444364).

The spelling of 231144230003232 in words is "two hundred thirty-one trillion, one hundred forty-four billion, two hundred thirty million, three thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 32 39 42 48 52 56 78 84 91 96 104 112 156 168 182 208 224 273 312 336 364 416 546 624 672 728 1092 1248 1456 2184 2912 4368 8736 26458817537 52917635074 79376452611 105835270148 158752905222 185211722759 211670540296 317505810444 343964627981 370423445518 423341080592 555635168277 635011620888 687929255962 740846891036 846682161184 1031893883943 1111270336554 1270023241776 1375858511924 1481693782072 2063787767886 2222540673108 2407752395867 2540046483552 2751717023848 2963387564144 4127575535772 4445081346216 4815504791734 5503434047696 5926775128288 7223257187601 8255151071544 8890162692432 9631009583468 11006868095392 14446514375202 16510302143088 17780325384864 19262019166936 28893028750404 33020604286176 38524038333872 57786057500808 77048076667744 115572115001616 231144230003232