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102293907872 = 25131918171503
BaseRepresentation
bin101111101000100110…
…0010010100110100000
3100210001001000221021112
41133101030102212200
53133444220022442
6114554305242452
710250636604362
oct1372114224640
9323031027245
10102293907872
113a423276032
12179aa033428
139852b30990
144d45984d32
1529da806082
hex17d13129a0

102293907872 has 96 divisors (see below), whose sum is σ = 229562161920. Its totient is φ = 44479964160.

The previous prime is 102293907841. The next prime is 102293907889. The reversal of 102293907872 is 278709392201.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 102293907872.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1394873 + ... + 1466375.

It is an arithmetic number, because the mean of its divisors is an integer number (2391272520).

Almost surely, 2102293907872 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 102293907872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114781080960).

102293907872 is an abundant number, since it is smaller than the sum of its proper divisors (127268254048).

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

102293907872 is a wasteful number, since it uses less digits than its factorization.

102293907872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71726 (or 71718 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 102293907872 in words is "one hundred two billion, two hundred ninety-three million, nine hundred seven thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 13 16 19 26 32 38 52 76 104 152 181 208 247 304 362 416 494 608 724 988 1448 1976 2353 2896 3439 3952 4706 5792 6878 7904 9412 13756 18824 27512 37648 44707 55024 71503 75296 89414 110048 143006 178828 286012 357656 572024 715312 929539 1144048 1358557 1430624 1859078 2288096 2717114 3718156 5434228 7436312 10868456 12942043 14872624 17661241 21736912 25884086 29745248 35322482 43473824 51768172 70644964 103536344 141289928 168246559 207072688 245898817 282579856 336493118 414145376 491797634 565159712 672986236 983595268 1345972472 1967190536 2691944944 3196684621 3934381072 5383889888 6393369242 7868762144 12786738484 25573476968 51146953936 102293907872