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31066031104 = 21058751683
BaseRepresentation
bin11100111011101011…
…100000010000000000
32222012001012220010121
4130323223200100000
51002110400443404
622134352510024
72146562623153
oct347353402000
988161186117
1031066031104
11121a1a67a79
12602bb4b314
132c111b1434
141709c63c9a
15c1c4eee54
hex73bae0400

31066031104 has 44 divisors (see below), whose sum is σ = 62208723024. Its totient is φ = 15506253824.

The previous prime is 31066031093. The next prime is 31066031123. The reversal of 31066031104 is 40113066013.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575247 + ... + 626929.

Almost surely, 231066031104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31066031104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31104361512).

31066031104 is an abundant number, since it is smaller than the sum of its proper divisors (31142691920).

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

31066031104 is an equidigital number, since it uses as much as digits as its factorization.

31066031104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52290 (or 52272 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31066031104 its reverse (40113066013), we get a palindrome (71179097117).

The spelling of 31066031104 in words is "thirty-one billion, sixty-six million, thirty-one thousand, one hundred four".

Divisors: 1 2 4 8 16 32 64 128 256 512 587 1024 1174 2348 4696 9392 18784 37568 51683 75136 103366 150272 206732 300544 413464 601088 826928 1653856 3307712 6615424 13230848 26461696 30337921 52923392 60675842 121351684 242703368 485406736 970813472 1941626944 3883253888 7766507776 15533015552 31066031104