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74096720 = 2453892381
BaseRepresentation
bin1000110101010…
…10000001010000
312011102111120222
410122222001100
5122432043340
611204052212
71556545265
oct432520120
9164374528
1074096720
1138909a65
1220994068
1312474419
149bab26c
1567898b5
hex46aa050

74096720 has 40 divisors (see below), whose sum is σ = 172790280. Its totient is φ = 29550080.

The previous prime is 74096677. The next prime is 74096723. The reversal of 74096720 is 2769047.

It can be written as a sum of positive squares in 4 ways, for example, as 2795584 + 71301136 = 1672^2 + 8444^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74096723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29930 + ... + 32310.

It is an arithmetic number, because the mean of its divisors is an integer number (4319757).

Almost surely, 274096720 is an apocalyptic number.

It is an amenable number.

74096720 is an abundant number, since it is smaller than the sum of its proper divisors (98693560).

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

74096720 is a wasteful number, since it uses less digits than its factorization.

74096720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783 (or 2777 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 74096720 is about 8607.9451671116. The cubic root of 74096720 is about 420.0164770558.

The spelling of 74096720 in words is "seventy-four million, ninety-six thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 389 778 1556 1945 2381 3112 3890 4762 6224 7780 9524 11905 15560 19048 23810 31120 38096 47620 95240 190480 926209 1852418 3704836 4631045 7409672 9262090 14819344 18524180 37048360 74096720