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31327674620 = 225111943117389
BaseRepresentation
bin11101001011010001…
…100110000011111100
32222212021112202120012
4131023101212003330
51003124341041440
622220340442352
72156220561224
oct351321460374
988767482505
1031327674620
1112316723690
1260a36a93b8
132c5346c798
1417328d1084
15c35483e65
hex74b4660fc

31327674620 has 96 divisors (see below), whose sum is σ = 75725798400. Its totient is φ = 10766649600.

The previous prime is 31327674583. The next prime is 31327674673. The reversal of 31327674620 is 2647672313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1792886 + ... + 1810274.

It is an arithmetic number, because the mean of its divisors is an integer number (788810400).

Almost surely, 231327674620 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 31327674620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37862899200).

31327674620 is an abundant number, since it is smaller than the sum of its proper divisors (44398123780).

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

31327674620 is a wasteful number, since it uses less digits than its factorization.

31327674620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17859 (or 17857 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 41.

The spelling of 31327674620 in words is "thirty-one billion, three hundred twenty-seven million, six hundred seventy-four thousand, six hundred twenty".

Divisors: 1 2 4 5 10 11 19 20 22 38 44 55 76 95 110 190 209 220 380 418 431 836 862 1045 1724 2090 2155 4180 4310 4741 8189 8620 9482 16378 17389 18964 23705 32756 34778 40945 47410 69556 81890 86945 90079 94820 163780 173890 180158 191279 330391 347780 360316 382558 450395 660782 765116 900790 956395 1321564 1651955 1801580 1912790 3303910 3634301 3825580 6607820 7268602 7494659 14537204 14989318 18171505 29978636 36343010 37473295 72686020 74946590 82441249 142398521 149893180 164882498 284797042 329764996 412206245 569594084 711992605 824412490 1423985210 1566383731 1648824980 2847970420 3132767462 6265534924 7831918655 15663837310 31327674620