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74741020 = 22522916319
BaseRepresentation
bin1000111010001…
…11010100011100
312012122020101221
410131013110130
5123113203040
611225543124
71565200564
oct435072434
9165566357
1074741020
113920a042
1221044aa4
131263b773
149cd7da4
15686574a
hex474751c

74741020 has 24 divisors (see below), whose sum is σ = 157651200. Its totient is φ = 29764032.

The previous prime is 74741011. The next prime is 74741021. The reversal of 74741020 is 2014747.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74741021) 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 7 ways as a sum of consecutive naturals, for example, 3580 + ... + 12739.

It is an arithmetic number, because the mean of its divisors is an integer number (6568800).

Almost surely, 274741020 is an apocalyptic number.

It is an amenable number.

74741020 is an abundant number, since it is smaller than the sum of its proper divisors (82910180).

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

74741020 is a wasteful number, since it uses less digits than its factorization.

74741020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16557 (or 16555 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 74741020 is about 8645.2888904883. The cubic root of 74741020 is about 421.2303679944.

Adding to 74741020 its reverse (2014747), we get a palindrome (76755767).

The spelling of 74741020 in words is "seventy-four million, seven hundred forty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 229 458 916 1145 2290 4580 16319 32638 65276 81595 163190 326380 3737051 7474102 14948204 18685255 37370510 74741020