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3131041222240 = 25533159120869
BaseRepresentation
bin101101100100000000100…
…110011000111001100000
3102002022202122110002110121
4231210000212120321200
5402244333023102430
610354214103410024
7442132056160561
oct55440046307140
912068678402417
103131041222240
11aa795a164558
12426997453914
13199343345869
14ab7867a0168
15566a3bcca7a
hex2d900998e60

3131041222240 has 48 divisors (see below), whose sum is σ = 7419432701520. Its totient is φ = 1248632732160.

The previous prime is 3131041222217. The next prime is 3131041222261. The reversal of 3131041222240 is 422221401313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29507475 + ... + 29613394.

It is an arithmetic number, because the mean of its divisors is an integer number (154571514615).

Almost surely, 23131041222240 is an apocalyptic number.

It is an amenable number.

3131041222240 is an abundant number, since it is smaller than the sum of its proper divisors (4288391479280).

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

3131041222240 is a wasteful number, since it uses less digits than its factorization.

3131041222240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59121215 (or 59121207 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 3131041222240 its reverse (422221401313), we get a palindrome (3553262623553).

The spelling of 3131041222240 in words is "three trillion, one hundred thirty-one billion, forty-one million, two hundred twenty-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 331 662 1324 1655 2648 3310 5296 6620 10592 13240 26480 52960 59120869 118241738 236483476 295604345 472966952 591208690 945933904 1182417380 1891867808 2364834760 4729669520 9459339040 19569007639 39138015278 78276030556 97845038195 156552061112 195690076390 313104122224 391380152780 626208244448 782760305560 1565520611120 3131041222240