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74060860 = 22519316287
BaseRepresentation
bin1000110101000…
…01010000111100
312011100200101211
410122201100330
5122424421420
611203214204
71556335606
oct432412074
9164320354
1074060860
1138895025
1220977364
1312460cc3
149b9c176
15677de5a
hex46a143c

74060860 has 48 divisors (see below), whose sum is σ = 169021440. Its totient is φ = 27155520.

The previous prime is 74060839. The next prime is 74060873. The reversal of 74060860 is 6806047.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8637 + ... + 14923.

It is an arithmetic number, because the mean of its divisors is an integer number (3521280).

Almost surely, 274060860 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 74060860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84510720).

74060860 is an abundant number, since it is smaller than the sum of its proper divisors (94960580).

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

74060860 is a wasteful number, since it uses less digits than its factorization.

74060860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346 (or 6344 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 74060860 is about 8605.8619556672. The cubic root of 74060860 is about 419.9487087780.

The spelling of 74060860 in words is "seventy-four million, sixty thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 19 20 31 38 62 76 95 124 155 190 310 380 589 620 1178 2356 2945 5890 6287 11780 12574 25148 31435 62870 119453 125740 194897 238906 389794 477812 597265 779588 974485 1194530 1948970 2389060 3703043 3897940 7406086 14812172 18515215 37030430 74060860