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971049971406 = 2331109227257821
BaseRepresentation
bin11100010000101110001…
…01101010111011001110
310102211110010211121002210
432020113011222323032
5111402202243041111
62022032202531250
7130104344366214
oct16102705527316
93384403747083
10971049971406
11344902436a29
12138242806b26
13707535b8cc8
1434ddb636cb4
151a3d4de00a6
hexe21716aece

971049971406 has 128 divisors (see below), whose sum is σ = 2042444574720. Its totient is φ = 307423641600.

The previous prime is 971049971371. The next prime is 971049971407. The reversal of 971049971406 is 604179940179.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971049971407) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1182764476 + ... + 1182765296.

It is an arithmetic number, because the mean of its divisors is an integer number (15956598240).

Almost surely, 2971049971406 is an apocalyptic number.

971049971406 is an abundant number, since it is smaller than the sum of its proper divisors (1071394603314).

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

971049971406 is a wasteful number, since it uses less digits than its factorization.

971049971406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450.

The product of its (nonzero) digits is 3429216, while the sum is 57.

The spelling of 971049971406 in words is "nine hundred seventy-one billion, forty-nine million, nine hundred seventy-one thousand, four hundred six".

Divisors: 1 2 3 6 31 62 93 109 186 218 227 257 327 454 514 654 681 771 821 1362 1542 1642 2463 3379 4926 6758 7037 7967 10137 14074 15934 20274 21111 23901 24743 25451 28013 42222 47802 49486 50902 56026 58339 74229 76353 84039 89489 116678 148458 152706 168078 175017 178978 186367 210997 268467 350034 372734 421994 536934 559101 632991 767033 868403 1118202 1265982 1534066 1736806 1808509 2301099 2605209 2774159 3617018 4602198 5210418 5425527 5548318 5777377 6358951 6540907 8322477 10851054 11554754 12717902 13081814 16644954 17332131 19076853 19622721 20314003 22998673 34664262 38153706 39245442 40628006 45997346 47896319 60942009 68996019 95792638 121884018 137992038 143688957 197127481 287377914 394254962 591382443 629734093 712958863 1182764886 1259468186 1425917726 1484785889 1889202279 2138876589 2969571778 3778404558 4277753178 4454357667 5220698771 8908715334 10441397542 15662096313 31324192626 161841661901 323683323802 485524985703 971049971406