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897959401430 = 257213140966939
BaseRepresentation
bin11010001000100101000…
…11010001011111010110
310011211210100000221020112
431010102203101133112
5104203010101321210
61524303350203022
7121606161655400
oct15042243213726
93154710027215
10897959401430
113169057439a3
12126044953472
13668a5a98930
143166639db70
15185582e9d05
hexd1128d17d6

897959401430 has 48 divisors (see below), whose sum is σ = 2024849126160. Its totient is φ = 284189347008.

The previous prime is 897959401357. The next prime is 897959401433. The reversal of 897959401430 is 34104959798.

It is a self number, because there is not a number n which added to its sum of digits gives 897959401430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897959401433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70477100 + ... + 70489839.

It is an arithmetic number, because the mean of its divisors is an integer number (42184356795).

Almost surely, 2897959401430 is an apocalyptic number.

897959401430 is an abundant number, since it is smaller than the sum of its proper divisors (1126889724730).

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

897959401430 is a wasteful number, since it uses less digits than its factorization.

897959401430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140966973 (or 140966966 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 897959401430 in words is "eight hundred ninety-seven billion, nine hundred fifty-nine million, four hundred one thousand, four hundred thirty".

Divisors: 1 2 5 7 10 13 14 26 35 49 65 70 91 98 130 182 245 455 490 637 910 1274 3185 6370 140966939 281933878 704834695 986768573 1409669390 1832570207 1973537146 3665140414 4933842865 6907380011 9162851035 9867685730 12827991449 13814760022 18325702070 25655982898 34536900055 64139957245 69073800110 89795940143 128279914490 179591880286 448979700715 897959401430