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320131203012444 = 223374585431572407
BaseRepresentation
bin100100011001010000101101…
…0101000110001011101011100
31112222111020120222000200222010
41020302201122220301131130
5313430012200432344234
63052510124442151220
7124300500433642155
oct11062413250613534
91488436528020863
10320131203012444
119300497632a74a
122baa36a41b2510
131098232089aa55
14590a60bc3492c
152702531e8b6e9
hex123285aa3175c

320131203012444 has 48 divisors (see below), whose sum is σ = 767163422204928. Its totient is φ = 103826043655488.

The previous prime is 320131203012427. The next prime is 320131203012451. The reversal of 320131203012444 is 444210302131023.

It is a super-3 number, since 3×3201312030124443 (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202806889 + ... + 204379295.

It is an arithmetic number, because the mean of its divisors is an integer number (15982571295936).

Almost surely, 2320131203012444 is an apocalyptic number.

It is an amenable number.

320131203012444 is an abundant number, since it is smaller than the sum of its proper divisors (447032219192484).

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

320131203012444 is a wasteful number, since it uses less digits than its factorization.

320131203012444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030994 (or 2030992 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 320131203012444 its reverse (444210302131023), we get a palindrome (764341505143467).

The spelling of 320131203012444 in words is "three hundred twenty trillion, one hundred thirty-one billion, two hundred three million, twelve thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 458543 917086 1375629 1572407 1834172 2751258 3144814 4717221 5502516 6289628 9434442 16966091 18868884 33932182 50898273 58179059 67864364 101796546 116358118 174537177 203593092 232716236 349074354 698148708 721016223001 1442032446002 2163048669003 2884064892004 4326097338006 8652194676012 26677600251037 53355200502074 80032800753111 106710401004148 160065601506222 320131203012444