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83113980 = 22351972907
BaseRepresentation
bin1001111010000…
…11011111111100
312210101121221120
410331003133330
5132234121410
612125230540
72026312545
oct475033774
9183347846
1083113980
1142a08844
1223a02450
13142b0891
14b0774cc
15746b570
hex4f437fc

83113980 has 48 divisors (see below), whose sum is σ = 244970880. Its totient is φ = 20996928.

The previous prime is 83113967. The next prime is 83113981. The reversal of 83113980 is 8931138.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83113981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35314 + ... + 37593.

It is an arithmetic number, because the mean of its divisors is an integer number (5103560).

Almost surely, 283113980 is an apocalyptic number.

It is an amenable number.

83113980 is an abundant number, since it is smaller than the sum of its proper divisors (161856900).

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

83113980 is a wasteful number, since it uses less digits than its factorization.

83113980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72938 (or 72936 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 83113980 is about 9116.6868982103. The cubic root of 83113980 is about 436.4066500370.

The spelling of 83113980 in words is "eighty-three million, one hundred thirteen thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 380 570 1140 72907 145814 218721 291628 364535 437442 729070 874884 1093605 1385233 1458140 2187210 2770466 4155699 4374420 5540932 6926165 8311398 13852330 16622796 20778495 27704660 41556990 83113980