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67300420 = 225111791709
BaseRepresentation
bin1000000001011…
…10110001000100
311200122012211011
410000232301010
5114212103140
610402252004
71445021065
oct400566104
9150565734
1067300420
1134a97890
121a657004
1310c34b45
148d1c56c
155d95cea
hex402ec44

67300420 has 48 divisors (see below), whose sum is σ = 155131200. Its totient is φ = 24321920.

The previous prime is 67300397. The next prime is 67300439. The reversal of 67300420 is 2400376.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 67300391 and 67300400.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38526 + ... + 40234.

It is an arithmetic number, because the mean of its divisors is an integer number (3231900).

Almost surely, 267300420 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 67300420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77565600).

67300420 is an abundant number, since it is smaller than the sum of its proper divisors (87830780).

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

67300420 is a wasteful number, since it uses less digits than its factorization.

67300420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 67300420 is about 8203.6833190951. The cubic root of 67300420 is about 406.7609548756.

Adding to 67300420 its reverse (2400376), we get a palindrome (69700796).

The spelling of 67300420 in words is "sixty-seven million, three hundred thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 179 220 358 716 895 1709 1790 1969 3418 3580 3938 6836 7876 8545 9845 17090 18799 19690 34180 37598 39380 75196 93995 187990 305911 375980 611822 1223644 1529555 3059110 3365021 6118220 6730042 13460084 16825105 33650210 67300420