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31283910196 = 227112924114533
BaseRepresentation
bin11101001000101010…
…101001011000110100
32222202020012022001121
4131020222221120310
51003032140111241
622212134433324
72155146564160
oct351052513064
988666168047
1031283910196
11122a3a51840
126090b02844
132c47388686
14172ab7bca0
15c316dbad1
hex748aa9634

31283910196 has 96 divisors (see below), whose sum is σ = 70907316480. Its totient is φ = 11718604800.

The previous prime is 31283910181. The next prime is 31283910209. The reversal of 31283910196 is 69101938213.

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, 2145346 + ... + 2159878.

It is an arithmetic number, because the mean of its divisors is an integer number (738617880).

Almost surely, 231283910196 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 31283910196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35453658240).

31283910196 is an abundant number, since it is smaller than the sum of its proper divisors (39623406284).

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

31283910196 is a wasteful number, since it uses less digits than its factorization.

31283910196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14825 (or 14823 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 31283910196 in words is "thirty-one billion, two hundred eighty-three million, nine hundred ten thousand, one hundred ninety-six".

Divisors: 1 2 4 7 11 14 22 28 29 44 58 77 116 154 203 241 308 319 406 482 638 812 964 1276 1687 2233 2651 3374 4466 5302 6748 6989 8932 10604 13978 14533 18557 27956 29066 37114 48923 58132 74228 76879 97846 101731 153758 159863 195692 203462 307516 319726 406924 421457 538153 639452 842914 1076306 1119041 1685828 2152612 2238082 2950199 3502453 4476164 4636027 5900398 7004906 9272054 11800796 14009812 18544108 24517171 32452189 38526983 49034342 64904378 77053966 98068684 101571137 129808756 154107932 203142274 269688881 406284548 539377762 710997959 1078755524 1117282507 1421995918 2234565014 2843991836 4469130028 7820977549 15641955098 31283910196