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76065480 = 23345171381
BaseRepresentation
bin1001000100010…
…10101011001000
312022010112020000
410202022223020
5123433043410
611314203000
71612355151
oct442125310
9168115200
1076065480
1139a34137
1221583460
13129b357a
14a160928
156a27dc0
hex488aac8

76065480 has 160 divisors (see below), whose sum is σ = 270899640. Its totient is φ = 19077120.

The previous prime is 76065467. The next prime is 76065481. The reversal of 76065480 is 8456067.

It is a happy number.

76065480 is a `hidden beast` number, since 7 + 606 + 5 + 48 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 67667076 + 8398404 = 8226^2 + 2898^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (76065481) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 54390 + ... + 55770.

Almost surely, 276065480 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 76065480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135449820).

76065480 is an abundant number, since it is smaller than the sum of its proper divisors (194834160).

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

76065480 is a wasteful number, since it uses less digits than its factorization.

76065480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421 (or 1408 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 76065480 is about 8721.5526140705. The cubic root of 76065480 is about 423.7039733860.

The spelling of 76065480 in words is "seventy-six million, sixty-five thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 27 30 34 36 40 45 51 54 60 68 72 81 85 90 102 108 120 135 136 153 162 170 180 204 216 255 270 306 324 340 360 405 408 459 510 540 612 648 680 765 810 918 1020 1080 1224 1377 1381 1530 1620 1836 2040 2295 2754 2762 3060 3240 3672 4143 4590 5508 5524 6120 6885 6905 8286 9180 11016 11048 12429 13770 13810 16572 18360 20715 23477 24858 27540 27620 33144 37287 41430 46954 49716 55080 55240 62145 70431 74574 82860 93908 99432 111861 117385 124290 140862 149148 165720 186435 187816 211293 223722 234770 248580 281724 298296 352155 372870 422586 447444 469540 497160 559305 563448 633879 704310 745740 845172 894888 939080 1056465 1118610 1267758 1408620 1491480 1690344 1901637 2112930 2237220 2535516 2817240 3169395 3803274 4225860 4474440 5071032 6338790 7606548 8451720 9508185 12677580 15213096 19016370 25355160 38032740 76065480