Search a number
-
+
73007872 = 287131311
BaseRepresentation
bin1000101101000…
…00001100000000
312002101011222021
410112200030000
5122142222442
611124451224
71544361640
oct426401400
9162334867
1073007872
1138235993
1220549b14
1312182932
1499a6520
156621e67
hex45a0300

73007872 has 72 divisors (see below), whose sum is σ = 168360192. Its totient is φ = 30950400.

The previous prime is 73007867. The next prime is 73007881. The reversal of 73007872 is 27870037.

It is a super-3 number, since 3×730078723 (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234597 + ... + 234907.

It is an arithmetic number, because the mean of its divisors is an integer number (2338336).

Almost surely, 273007872 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 73007872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84180096).

73007872 is an abundant number, since it is smaller than the sum of its proper divisors (95352320).

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

73007872 is a wasteful number, since it uses less digits than its factorization.

73007872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 73007872 is about 8544.4644068543. The cubic root of 73007872 is about 417.9489418188.

The spelling of 73007872 in words is "seventy-three million, seven thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 131 224 256 262 311 448 524 622 896 917 1048 1244 1792 1834 2096 2177 2488 3668 4192 4354 4976 7336 8384 8708 9952 14672 16768 17416 19904 29344 33536 34832 39808 40741 58688 69664 79616 81482 117376 139328 162964 234752 278656 285187 325928 557312 570374 651856 1140748 1303712 2281496 2607424 4562992 5214848 9125984 10429696 18251968 36503936 73007872