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74054688 = 253771403
BaseRepresentation
bin1000110100111…
…11110000100000
312011100100221020
410122133300200
5122424222223
611203125440
71556311611
oct432376040
9164310836
1074054688
1138890424
1220973880
131245b256
149b99c08
15677c1e3
hex469fc20

74054688 has 24 divisors (see below), whose sum is σ = 194393808. Its totient is φ = 24684864.

The previous prime is 74054683. The next prime is 74054699. The reversal of 74054688 is 88645047.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (74054683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385606 + ... + 385797.

It is an arithmetic number, because the mean of its divisors is an integer number (8099742).

Almost surely, 274054688 is an apocalyptic number.

It is an amenable number.

74054688 is an abundant number, since it is smaller than the sum of its proper divisors (120339120).

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

74054688 is a wasteful number, since it uses less digits than its factorization.

74054688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771416 (or 771408 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 74054688 is about 8605.5033554116. The cubic root of 74054688 is about 419.9370427175.

It can be divided in two parts, 7405468 and 8, that added together give a triangular number (7405476 = T3848).

The spelling of 74054688 in words is "seventy-four million, fifty-four thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 771403 1542806 2314209 3085612 4628418 6171224 9256836 12342448 18513672 24684896 37027344 74054688