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83458480 = 2457149033
BaseRepresentation
bin1001111100101…
…11100110110000
312211001010111211
410332113212300
5132331132410
612140445504
72032246120
oct476274660
9184033454
1083458480
1143123656
1223b49894
13143a1621
14b126c80
1574d868a
hex4f979b0

83458480 has 40 divisors (see below), whose sum is σ = 221762592. Its totient is φ = 28614144.

The previous prime is 83458477. The next prime is 83458481. The reversal of 83458480 is 8485438.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (83458481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73957 + ... + 75076.

Almost surely, 283458480 is an apocalyptic number.

83458480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

83458480 is an abundant number, since it is smaller than the sum of its proper divisors (138304112).

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

83458480 is a wasteful number, since it uses less digits than its factorization.

83458480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149053 (or 149047 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 83458480 is about 9135.5612854384. The cubic root of 83458480 is about 437.0087743719.

It can be divided in two parts, 83458 and 480, that added together give a palindrome (83938).

The spelling of 83458480 in words is "eighty-three million, four hundred fifty-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 149033 298066 596132 745165 1043231 1192264 1490330 2086462 2384528 2980660 4172924 5216155 5961320 8345848 10432310 11922640 16691696 20864620 41729240 83458480