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82353480 = 23351189701
BaseRepresentation
bin1001110100010…
…01110101001000
312201221222201220
410322021311020
5132040302410
612101042040
72016664416
oct472116510
9181858656
1082353480
1142539430
12236b6320
13140a5691
14ad1a2b6
15736b070
hex4e89d48

82353480 has 128 divisors (see below), whose sum is σ = 272937600. Its totient is φ = 19712000.

The previous prime is 82353473. The next prime is 82353493. The reversal of 82353480 is 8435328.

It is a super-2 number, since 2×823534802 = 13564191336220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 117130 + ... + 117830.

It is an arithmetic number, because the mean of its divisors is an integer number (2132325).

Almost surely, 282353480 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 82353480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136468800).

82353480 is an abundant number, since it is smaller than the sum of its proper divisors (190584120).

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

82353480 is a wasteful number, since it uses less digits than its factorization.

82353480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 82353480 is about 9074.8818174123. The cubic root of 82353480 is about 435.0715168450.

The spelling of 82353480 in words is "eighty-two million, three hundred fifty-three thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 89 110 120 132 165 178 220 264 267 330 356 440 445 534 660 701 712 890 979 1068 1320 1335 1402 1780 1958 2103 2136 2670 2804 2937 3505 3560 3916 4206 4895 5340 5608 5874 7010 7711 7832 8412 9790 10515 10680 11748 14020 14685 15422 16824 19580 21030 23133 23496 28040 29370 30844 38555 39160 42060 46266 58740 61688 62389 77110 84120 92532 115665 117480 124778 154220 185064 187167 231330 249556 308440 311945 374334 462660 499112 623890 686279 748668 925320 935835 1247780 1372558 1497336 1871670 2058837 2495560 2745116 3431395 3743340 4117674 5490232 6862790 7486680 8235348 10294185 13725580 16470696 20588370 27451160 41176740 82353480