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73996272 = 24327210487
BaseRepresentation
bin1000110100100…
…01011111110000
312011020101210200
410122101133300
5122420340042
611201555200
71555646400
oct432213760
9164211720
1073996272
1138850549
1220945b00
131243a79c
149b82800
156769c4c
hex46917f0

73996272 has 90 divisors (see below), whose sum is σ = 240919848. Its totient is φ = 21139776.

The previous prime is 73996261. The next prime is 73996289. The reversal of 73996272 is 27269937.

It is a happy number.

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 (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1813 + ... + 12299.

Almost surely, 273996272 is an apocalyptic number.

73996272 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73996272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120459924).

73996272 is an abundant number, since it is smaller than the sum of its proper divisors (166923576).

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

73996272 is a wasteful number, since it uses less digits than its factorization.

73996272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10515 (or 10499 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 73996272 is about 8602.1085787149. The cubic root of 73996272 is about 419.8265950830.

The spelling of 73996272 in words is "seventy-three million, nine hundred ninety-six thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 49 56 63 72 84 98 112 126 144 147 168 196 252 294 336 392 441 504 588 784 882 1008 1176 1764 2352 3528 7056 10487 20974 31461 41948 62922 73409 83896 94383 125844 146818 167792 188766 220227 251688 293636 377532 440454 503376 513863 587272 660681 755064 880908 1027726 1174544 1321362 1510128 1541589 1761816 2055452 2642724 3083178 3523632 4110904 4624767 5285448 6166356 8221808 9249534 10570896 12332712 18499068 24665424 36998136 73996272