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76830120 = 23345231031
BaseRepresentation
bin1001001010001…
…01010110101000
312100120101010000
410211011112220
5124132030440
611342423000
71622021343
oct445052650
9170511100
1076830120
113a406674
1221891a60
1312bc0613
14a2bd45a
156b29730
hex49455a8

76830120 has 160 divisors (see below), whose sum is σ = 269723520. Its totient is φ = 19578240.

The previous prime is 76830109. The next prime is 76830133. The reversal of 76830120 is 2103867.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 74005 + ... + 75035.

It is an arithmetic number, because the mean of its divisors is an integer number (1685772).

Almost surely, 276830120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76830120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134861760).

76830120 is an abundant number, since it is smaller than the sum of its proper divisors (192893400).

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

76830120 is a wasteful number, since it uses less digits than its factorization.

76830120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 76830120 is about 8765.2792311483. The cubic root of 76830120 is about 425.1189885979.

Adding to 76830120 its reverse (2103867), we get a palindrome (78933987).

The spelling of 76830120 in words is "seventy-six million, eight hundred thirty thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 23 24 27 30 36 40 45 46 54 60 69 72 81 90 92 108 115 120 135 138 162 180 184 207 216 230 270 276 324 345 360 405 414 460 540 552 621 648 690 810 828 920 1031 1035 1080 1242 1380 1620 1656 1863 2062 2070 2484 2760 3093 3105 3240 3726 4124 4140 4968 5155 6186 6210 7452 8248 8280 9279 9315 10310 12372 12420 14904 15465 18558 18630 20620 23713 24744 24840 27837 30930 37116 37260 41240 46395 47426 55674 61860 71139 74232 74520 83511 92790 94852 111348 118565 123720 139185 142278 167022 185580 189704 213417 222696 237130 278370 284556 334044 355695 371160 417555 426834 474260 556740 569112 640251 668088 711390 835110 853668 948520 1067085 1113480 1280502 1422780 1670220 1707336 1920753 2134170 2561004 2845560 3201255 3340440 3841506 4268340 5122008 6402510 7683012 8536680 9603765 12805020 15366024 19207530 25610040 38415060 76830120