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42831976902 = 231113112344453
BaseRepresentation
bin100111111000111111…
…000001100111000110
311002120000220212110220
4213320333001213012
51200204441230102
631402101525210
73044262540141
oct477077014706
9132500825426
1042831976902
111718a597220
128374413806
1340679c7540
142104757058
1511aa43b1bc
hex9f8fc19c6

42831976902 has 64 divisors (see below), whose sum is σ = 100732052736. Its totient is φ = 11970034560.

The previous prime is 42831976841. The next prime is 42831976919. The reversal of 42831976902 is 20967913824.

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, 941308 + ... + 985760.

It is an arithmetic number, because the mean of its divisors is an integer number (1573938324).

Almost surely, 242831976902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42831976902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50366026368).

42831976902 is an abundant number, since it is smaller than the sum of its proper divisors (57900075834).

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

42831976902 is a wasteful number, since it uses less digits than its factorization.

42831976902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45605.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 42831976902 in words is "forty-two billion, eight hundred thirty-one million, nine hundred seventy-six thousand, nine hundred two".

Divisors: 1 2 3 6 11 13 22 26 33 39 66 78 143 286 429 858 1123 2246 3369 6738 12353 14599 24706 29198 37059 43797 44453 74118 87594 88906 133359 160589 266718 321178 481767 488983 577889 963534 977966 1155778 1466949 1733667 2933898 3467334 6356779 12713558 19070337 38140674 49920719 99841438 149762157 299524314 549127909 648969347 1098255818 1297938694 1647383727 1946908041 3294767454 3893816082 7138662817 14277325634 21415988451 42831976902