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31483870880401 = 67283210092
BaseRepresentation
bin1110010100010011010001…
…11100001010001010010001
311010110211101002112201121201
413022021220330022022101
513111312431421133101
6150543253545551201
76426430445641402
oct712115074121221
9133424332481551
1031483870880401
11a039264369135
1236459507a5501
131474bbb1017b4
147abb828739a9
15398e7b174e01
hex1ca268f0a291

31483870880401 has 27 divisors (see below), whose sum is σ = 32382595871451. Its totient is φ = 30609933165504.

The previous prime is 31483870880281. The next prime is 31483870880417. The reversal of 31483870880401 is 10408807838413.

The square root of 31483870880401 is 5611049.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9663387742801 + 21820483137600 = 3108599^2 + 4671240^2 .

It is not a de Polignac number, because 31483870880401 - 229 = 31483334009489 is a prime.

It is a super-2 number, since 2×314838708804012 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31483870880471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 31203042985 + ... + 31203043993.

Almost surely, 231483870880401 is an apocalyptic number.

31483870880401 is the 5611049-th square number.

31483870880401 is the 2805525-th centered octagonal number.

It is an amenable number.

31483870880401 is a deficient number, since it is larger than the sum of its proper divisors (898724991050).

31483870880401 is an frugal number, since it uses more digits than its factorization.

31483870880401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318 (or 1159 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 55.

The spelling of 31483870880401 in words is "thirty-one trillion, four hundred eighty-three billion, eight hundred seventy million, eight hundred eighty thousand, four hundred one".

Divisors: 1 67 83 1009 4489 5561 6889 67603 83747 372587 461563 1018081 4529401 5611049 6951001 30924721 68211427 84500723 375940283 465717067 4570165609 5661548441 7013560009 31203043489 379323745547 469908520603 31483870880401