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72936344 = 2313273739
BaseRepresentation
bin1000101100011…
…10101110011000
312002020112212002
410112032232120
5122132430334
611123140132
71543643255
oct426165630
9162215762
1072936344
1138197178
1220514648
1312159200
14998842c
15660ab7e
hex458eb98

72936344 has 48 divisors (see below), whose sum is σ = 150316200. Its totient is φ = 33156864.

The previous prime is 72936329. The next prime is 72936349. The reversal of 72936344 is 44363927.

It is a junction number, because it is equal to n+sod(n) for n = 72936298 and 72936307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72936349) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 98327 + ... + 99065.

Almost surely, 272936344 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 72936344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75158100).

72936344 is an abundant number, since it is smaller than the sum of its proper divisors (77379856).

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

72936344 is a wasteful number, since it uses less digits than its factorization.

72936344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 827 counting only the distinct ones).

The product of its digits is 108864, while the sum is 38.

The square root of 72936344 is about 8540.2777472398. The cubic root of 72936344 is about 417.8124048517.

It can be divided in two parts, 729 and 36344, that added together give a palindrome (37073).

The spelling of 72936344 in words is "seventy-two million, nine hundred thirty-six thousand, three hundred forty-four".

Divisors: 1 2 4 8 13 26 52 73 104 146 169 292 338 584 676 739 949 1352 1478 1898 2956 3796 5912 7592 9607 12337 19214 24674 38428 49348 53947 76856 98696 107894 124891 215788 249782 431576 499564 701311 999128 1402622 2805244 5610488 9117043 18234086 36468172 72936344