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72949248 = 29341759
BaseRepresentation
bin1000101100100…
…01111000000000
312002021012120000
410112101320000
5122133333443
611123320000
71544026011
oct426217000
9162235500
1072949248
11381a5939
1220520000
1312162048
14998d008
15660e8d3
hex4591e00

72949248 has 100 divisors (see below), whose sum is σ = 217858080. Its totient is φ = 24302592.

The previous prime is 72949243. The next prime is 72949259. The reversal of 72949248 is 84294927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72949243) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 40593 + ... + 42351.

Almost surely, 272949248 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 72949248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108929040).

72949248 is an abundant number, since it is smaller than the sum of its proper divisors (144908832).

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

72949248 is an equidigital number, since it uses as much as digits as its factorization.

72949248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789 (or 1764 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 72949248 is about 8541.0331927701. The cubic root of 72949248 is about 417.8370433837.

The spelling of 72949248 in words is "seventy-two million, nine hundred forty-nine thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 256 288 324 384 432 512 576 648 768 864 1152 1296 1536 1728 1759 2304 2592 3456 3518 4608 5184 5277 6912 7036 10368 10554 13824 14072 15831 20736 21108 28144 31662 41472 42216 47493 56288 63324 84432 94986 112576 126648 142479 168864 189972 225152 253296 284958 337728 379944 450304 506592 569916 675456 759888 900608 1013184 1139832 1350912 1519776 2026368 2279664 2701824 3039552 4052736 4559328 6079104 8105472 9118656 12158208 18237312 24316416 36474624 72949248