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74000000 = 275637
BaseRepresentation
bin1000110100100…
…10011010000000
312011020120220202
410122102122000
5122421000000
611202024332
71555663304
oct432223200
9164216822
1074000000
1138853328
12209480a8
131243c3a9
149b83d04
15676add5
hex4692680

74000000 has 112 divisors (see below), whose sum is σ = 189255390. Its totient is φ = 28800000.

The previous prime is 73999969. The next prime is 74000051. The reversal of 74000000 is 47.

It can be written as a sum of positive squares in 7 ways, for example, as 22963264 + 51036736 = 4792^2 + 7144^2 .

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1999982 + ... + 2000018.

Almost surely, 274000000 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 74000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94627695).

74000000 is an abundant number, since it is smaller than the sum of its proper divisors (115255390).

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

74000000 is an frugal number, since it uses more digits than its factorization.

74000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 11.

The square root of 74000000 is about 8602.3252670426. The cubic root of 74000000 is about 419.8336453808.

Adding to 74000000 its reverse (47), we get a palindrome (74000047).

The spelling of 74000000 in words is "seventy-four million", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 16 20 25 32 37 40 50 64 74 80 100 125 128 148 160 185 200 250 296 320 370 400 500 592 625 640 740 800 925 1000 1184 1250 1480 1600 1850 2000 2368 2500 2960 3125 3200 3700 4000 4625 4736 5000 5920 6250 7400 8000 9250 10000 11840 12500 14800 15625 16000 18500 20000 23125 23680 25000 29600 31250 37000 40000 46250 50000 59200 62500 74000 80000 92500 100000 115625 118400 125000 148000 185000 200000 231250 250000 296000 370000 400000 462500 500000 578125 592000 740000 925000 1000000 1156250 1480000 1850000 2000000 2312500 2960000 3700000 4625000 7400000 9250000 14800000 18500000 37000000 74000000