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320030203113231 = 31323751947501659
BaseRepresentation
bin100100011000100001101011…
…0100100101110111100001111
31112222010120220002220012212020
41020301003112210232330033
5313421333323444110411
63052351502355541223
7124260263525652462
oct11061032644567417
91488116802805766
10320030203113231
1192a7605753a566
122ba87bb75ba813
1310975945b87c90
14590578a0912d9
1526eeac0090606
hex12310d692ef0f

320030203113231 has 64 divisors (see below), whose sum is σ = 480656611491840. Its totient is φ = 187929113328000.

The previous prime is 320030203113161. The next prime is 320030203113253. The reversal of 320030203113231 is 132311302030023.

It is not a de Polignac number, because 320030203113231 - 218 = 320030202851087 is a prime.

It is a super-2 number, since 2×3200302031132312 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320030203112231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 637692880 + ... + 638194538.

It is an arithmetic number, because the mean of its divisors is an integer number (7510259554560).

Almost surely, 2320030203113231 is an apocalyptic number.

320030203113231 is a deficient number, since it is larger than the sum of its proper divisors (160626408378609).

320030203113231 is a wasteful number, since it uses less digits than its factorization.

320030203113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503396.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 320030203113231 its reverse (132311302030023), we get a palindrome (452341505143254).

The spelling of 320030203113231 in words is "three hundred twenty trillion, thirty billion, two hundred three million, one hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 3 13 23 39 69 299 751 897 947 2253 2841 9763 12311 17273 21781 29289 36933 51819 65343 224549 283153 501659 673647 711197 849459 1504977 2133591 6521567 9245561 11538157 16357531 19564701 27736683 34614471 49072593 149996041 212647903 376745909 449988123 475071073 637943709 1130237727 1425213219 4897696817 6175923949 8665155907 10926634679 14693090451 18527771847 25995467721 32779904037 112647026791 142046250827 337941080373 356778375823 426138752481 1070335127469 4638118885699 8205902643929 13914356657097 24617707931787 106676734371077 320030203113231