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457630680 = 233513319463
BaseRepresentation
bin11011010001101…
…110001111011000
31011220010001021110
4123101232033120
51414123140210
6113224340320
714224540143
oct3321561730
91156101243
10457630680
11215358781
121093146a0
1373a6bcb0
1444ac705a
152a299420
hex1b46e3d8

457630680 has 128 divisors (see below), whose sum is σ = 1526353920. Its totient is φ = 109002240.

The previous prime is 457630669. The next prime is 457630739. The reversal of 457630680 is 86036754.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 43629 + ... + 53091.

It is an arithmetic number, because the mean of its divisors is an integer number (11924640).

Almost surely, 2457630680 is an apocalyptic number.

457630680 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 457630680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (763176960).

457630680 is an abundant number, since it is smaller than the sum of its proper divisors (1068723240).

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

457630680 is a wasteful number, since it uses less digits than its factorization.

457630680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9521 (or 9517 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 457630680 is about 21392.3042237156. The cubic root of 457630680 is about 770.6166309247.

The spelling of 457630680 in words is "four hundred fifty-seven million, six hundred thirty thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 31 39 40 52 60 62 65 78 93 104 120 124 130 155 156 186 195 248 260 310 312 372 390 403 465 520 620 744 780 806 930 1209 1240 1560 1612 1860 2015 2418 3224 3720 4030 4836 6045 8060 9463 9672 12090 16120 18926 24180 28389 37852 47315 48360 56778 75704 94630 113556 123019 141945 189260 227112 246038 283890 293353 369057 378520 492076 567780 586706 615095 738114 880059 984152 1135560 1173412 1230190 1466765 1476228 1760118 1845285 2346824 2460380 2933530 2952456 3520236 3690570 3813589 4400295 4920760 5867060 7040472 7381140 7627178 8800590 11440767 11734120 14762280 15254356 17601180 19067945 22881534 30508712 35202360 38135890 45763068 57203835 76271780 91526136 114407670 152543560 228815340 457630680