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74943954 = 2342631759
BaseRepresentation
bin1000111011110…
…00110111010010
312020000112210000
410131320313102
5123141201304
611234150430
71600004331
oct435706722
9166015700
1074943954
1139338558
1221122416
13126acc47
149d4bd18
1568a5939
hex4778dd2

74943954 has 40 divisors (see below), whose sum is σ = 168664320. Its totient is φ = 24872184.

The previous prime is 74943949. The next prime is 74943971. The reversal of 74943954 is 45934947.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41727 + ... + 43485.

It is an arithmetic number, because the mean of its divisors is an integer number (4216608).

Almost surely, 274943954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74943954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84332160).

74943954 is an abundant number, since it is smaller than the sum of its proper divisors (93720366).

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

74943954 is a wasteful number, since it uses less digits than its factorization.

74943954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036 (or 2027 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 74943954 is about 8657.0176157843. The cubic root of 74943954 is about 421.6112597465.

The spelling of 74943954 in words is "seventy-four million, nine hundred forty-three thousand, nine hundred fifty-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 263 526 789 1578 1759 2367 3518 4734 5277 7101 10554 14202 15831 21303 31662 42606 47493 94986 142479 284958 462617 925234 1387851 2775702 4163553 8327106 12490659 24981318 37471977 74943954