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74101420 = 2255321319
BaseRepresentation
bin1000110101010…
…11001010101100
312011102202001001
410122223022230
5122432221140
611204130044
71556565061
oct432531254
9164382031
1074101420
1138912548
1220996924
13124765c3
149bacc68
15678ae9a
hex46ab2ac

74101420 has 36 divisors (see below), whose sum is σ = 158724720. Its totient is φ = 29059264.

The previous prime is 74101411. The next prime is 74101421. The reversal of 74101420 is 2410147.

It is not an unprimeable number, because it can be changed into a prime (74101421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55521 + ... + 56839.

It is an arithmetic number, because the mean of its divisors is an integer number (4409020).

Almost surely, 274101420 is an apocalyptic number.

It is an amenable number.

74101420 is an abundant number, since it is smaller than the sum of its proper divisors (84623300).

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

74101420 is a wasteful number, since it uses less digits than its factorization.

74101420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434 (or 1379 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 74101420 is about 8608.2181663803. The cubic root of 74101420 is about 420.0253575015.

Adding to 74101420 its reverse (2410147), we get a palindrome (76511567).

The spelling of 74101420 in words is "seventy-four million, one hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 1319 2638 2809 5276 5618 6595 11236 13190 14045 26380 28090 56180 69907 139814 279628 349535 699070 1398140 3705071 7410142 14820284 18525355 37050710 74101420