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31010025125425 = 52172324142131267
BaseRepresentation
bin1110000110100000101011…
…00010000011011000110001
311001210112021222011022200211
413003100111202003120301
513031032012413003200
6145541450414544121
76350254221324163
oct703202542033061
9131715258138624
1031010025125425
119976306832075
123589b4a808041
13143c304681568
14792c71016933
1538b996712aba
hex1c3415883631

31010025125425 has 96 divisors (see below), whose sum is σ = 42763511602944. Its totient is φ = 22187354112000.

The previous prime is 31010025125407. The next prime is 31010025125447. The reversal of 31010025125425 is 52452152001013.

It is a de Polignac number, because none of the positive numbers 2k-31010025125425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 991765642 + ... + 991796908.

It is an arithmetic number, because the mean of its divisors is an integer number (445453245864).

Almost surely, 231010025125425 is an apocalyptic number.

It is an amenable number.

31010025125425 is a deficient number, since it is larger than the sum of its proper divisors (11753486477519).

31010025125425 is a wasteful number, since it uses less digits than its factorization.

31010025125425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31979 (or 31974 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 31010025125425 its reverse (52452152001013), we get a palindrome (83462177126438).

The spelling of 31010025125425 in words is "thirty-one trillion, ten billion, twenty-five million, one hundred twenty-five thousand, four hundred twenty-five".

Divisors: 1 5 17 23 25 85 115 241 391 421 425 575 1205 1955 2105 4097 5543 6025 7157 9683 9775 10525 20485 27715 31267 35785 48415 94231 101461 102425 138575 156335 164611 178925 242075 471155 507305 531539 719141 781675 823055 1724837 2333603 2355775 2536525 2657695 3595705 4115275 7535347 8624185 11668015 12225397 13163407 13288475 17978525 37676735 39671251 43120925 58340075 61126985 65817035 128100899 173312981 188383675 198356255 223777919 302758361 305634925 329085175 640504495 866564905 991781275 1118889595 1513791805 2946320677 3172381087 3202522475 4332824525 5146892137 5594447975 7568959025 14731603385 15861905435 25734460685 53930478479 72964765001 73658016925 79309527175 128672303425 269652392395 364823825005 1240401005017 1348261961975 1824119125025 6202005025085 31010025125425