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74713968 = 2433731797
BaseRepresentation
bin1000111010000…
…00101101110000
312012120212022000
410131000231300
5123111321333
611225214000
71565025660
oct435005560
9165525260
1074713968
11391a078a
1221031300
131262c364
149ccc1a0
15685c713
hex4740b70

74713968 has 160 divisors (see below), whose sum is σ = 253317120. Its totient is φ = 20632320.

The previous prime is 74713921. The next prime is 74713979. The reversal of 74713968 is 86931747.

It is a nude number because it is divisible by every one of its digits.

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 31 ways as a sum of consecutive naturals, for example, 93346 + ... + 94142.

It is an arithmetic number, because the mean of its divisors is an integer number (1583232).

Almost surely, 274713968 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 74713968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126658560).

74713968 is an abundant number, since it is smaller than the sum of its proper divisors (178603152).

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

74713968 is a wasteful number, since it uses less digits than its factorization.

74713968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852 (or 840 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 74713968 is about 8643.7241973585. The cubic root of 74713968 is about 421.1795413801.

The spelling of 74713968 in words is "seventy-four million, seven hundred thirteen thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 31 36 42 48 54 56 62 63 72 84 93 108 112 124 126 144 168 186 189 216 217 248 252 279 336 372 378 432 434 496 504 558 651 744 756 797 837 868 1008 1116 1302 1488 1512 1594 1674 1736 1953 2232 2391 2604 3024 3188 3348 3472 3906 4464 4782 5208 5579 5859 6376 6696 7173 7812 9564 10416 11158 11718 12752 13392 14346 15624 16737 19128 21519 22316 23436 24707 28692 31248 33474 38256 43038 44632 46872 49414 50211 57384 66948 74121 86076 89264 93744 98828 100422 114768 133896 148242 150633 172152 172949 197656 200844 222363 267792 296484 301266 344304 345898 395312 401688 444726 518847 592968 602532 667089 691796 803376 889452 1037694 1185936 1205064 1334178 1383592 1556541 1778904 2075388 2410128 2668356 2767184 3113082 3557808 4150776 4669623 5336712 6226164 8301552 9339246 10673424 12452328 18678492 24904656 37356984 74713968