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72896760 = 23345149151
BaseRepresentation
bin1000101100001…
…01000011111000
312002011112120000
410112011003320
5122130144020
611122233000
71543416666
oct426050370
9162145500
1072896760
113816a462
12204b5760
13121441a1
149977c36
1565ee090
hex45850f8

72896760 has 160 divisors (see below), whose sum is σ = 248292000. Its totient is φ = 19180800.

The previous prime is 72896753. The next prime is 72896797. The reversal of 72896760 is 6769827.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 6.

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 39 ways as a sum of consecutive naturals, for example, 482685 + ... + 482835.

It is an arithmetic number, because the mean of its divisors is an integer number (1551825).

Almost surely, 272896760 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 72896760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124146000).

72896760 is an abundant number, since it is smaller than the sum of its proper divisors (175395240).

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

72896760 is a wasteful number, since it uses less digits than its factorization.

72896760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 310 counting only the distinct ones).

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

The square root of 72896760 is about 8537.9599436868. The cubic root of 72896760 is about 417.7368061484.

The spelling of 72896760 in words is "seventy-two million, eight hundred ninety-six thousand, seven hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 81 90 108 120 135 149 151 162 180 216 270 298 302 324 360 405 447 453 540 596 604 648 745 755 810 894 906 1080 1192 1208 1341 1359 1490 1510 1620 1788 1812 2235 2265 2682 2718 2980 3020 3240 3576 3624 4023 4077 4470 4530 5364 5436 5960 6040 6705 6795 8046 8154 8940 9060 10728 10872 12069 12231 13410 13590 16092 16308 17880 18120 20115 20385 22499 24138 24462 26820 27180 32184 32616 40230 40770 44998 48276 48924 53640 54360 60345 61155 67497 80460 81540 89996 96552 97848 112495 120690 122310 134994 160920 163080 179992 202491 224990 241380 244620 269988 337485 404982 449980 482760 489240 539976 607473 674970 809964 899960 1012455 1214946 1349940 1619928 1822419 2024910 2429892 2699880 3037365 3644838 4049820 4859784 6074730 7289676 8099640 9112095 12149460 14579352 18224190 24298920 36448380 72896760