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481609960 = 2351329109293
BaseRepresentation
bin11100101101001…
…100100011101000
31020120020022122221
4130231030203220
51441243004320
6115442323424
714635421446
oct3455144350
91216208587
10481609960
11227946767
12115359574
1378a16710
1447d69b96
152c4343aa
hex1cb4c8e8

481609960 has 128 divisors (see below), whose sum is σ = 1222452000. Its totient is φ = 169537536.

The previous prime is 481609957. The next prime is 481610021. The reversal of 481609960 is 69906184.

It can be written as a sum of positive squares in 16 ways, for example, as 117029124 + 364580836 = 10818^2 + 19094^2 .

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, 1643574 + ... + 1643866.

Almost surely, 2481609960 is an apocalyptic number.

481609960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 481609960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611226000).

481609960 is an abundant number, since it is smaller than the sum of its proper divisors (740842040).

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

481609960 is a wasteful number, since it uses less digits than its factorization.

481609960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 481609960 is about 21945.6136847435. The cubic root of 481609960 is about 783.8479375012.

The spelling of 481609960 in words is "four hundred eighty-one million, six hundred nine thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 13 20 26 29 40 52 58 65 104 109 116 130 145 218 232 260 290 293 377 436 520 545 580 586 754 872 1090 1160 1172 1417 1465 1508 1885 2180 2344 2834 2930 3016 3161 3770 3809 4360 5668 5860 6322 7085 7540 7618 8497 11336 11720 12644 14170 15080 15236 15805 16994 19045 25288 28340 30472 31610 31937 33988 38090 41093 42485 56680 63220 63874 67976 76180 82186 84970 110461 126440 127748 152360 159685 164372 169940 205465 220922 255496 319370 328744 339880 410930 415181 441844 552305 638740 821860 830362 883688 926173 1104610 1277480 1643720 1660724 1852346 2075905 2209220 3321448 3704692 4151810 4418440 4630865 7409384 8303620 9261730 12040249 16607240 18523460 24080498 37046920 48160996 60201245 96321992 120402490 240804980 481609960