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74300660 = 2257310831
BaseRepresentation
bin1000110110110…
…11110011110100
312011210212100022
410123123303310
5123010110120
611212304312
71561355000
oct433336364
9164725308
1074300660
1138a39205
1220a72098
13125161b5
149c21700
1567ca025
hex46dbcf4

74300660 has 48 divisors (see below), whose sum is σ = 181977600. Its totient is φ = 25472160.

The previous prime is 74300617. The next prime is 74300663. The reversal of 74300660 is 6600347.

74300660 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

74300660 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74300663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1445 + ... + 12275.

It is an arithmetic number, because the mean of its divisors is an integer number (3791200).

Almost surely, 274300660 is an apocalyptic number.

74300660 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74300660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90988800).

74300660 is an abundant number, since it is smaller than the sum of its proper divisors (107676940).

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

74300660 is a wasteful number, since it uses less digits than its factorization.

74300660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10861 (or 10845 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 74300660 is about 8619.7830599151. The cubic root of 74300660 is about 420.4014679759.

The spelling of 74300660 in words is "seventy-four million, three hundred thousand, six hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 343 490 686 980 1372 1715 3430 6860 10831 21662 43324 54155 75817 108310 151634 216620 303268 379085 530719 758170 1061438 1516340 2122876 2653595 3715033 5307190 7430066 10614380 14860132 18575165 37150330 74300660