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20070726 = 23131929467
BaseRepresentation
bin100110010010…
…0000101000110
31101202200212020
41030210011012
520114230401
61554104010
7332412144
oct114440506
941680766
1020070726
1110369485
12687b006
134209690
142946594
151b66d36
hex1324146

20070726 has 64 divisors (see below), whose sum is σ = 47174400. Its totient is φ = 5636736.

The previous prime is 20070719. The next prime is 20070737. The reversal of 20070726 is 62707002.

It is a junction number, because it is equal to n+sod(n) for n = 20070696 and 20070705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42745 + ... + 43211.

It is an arithmetic number, because the mean of its divisors is an integer number (737100).

Almost surely, 220070726 is an apocalyptic number.

20070726 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20070726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23587200).

20070726 is an abundant number, since it is smaller than the sum of its proper divisors (27103674).

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

20070726 is a wasteful number, since it uses less digits than its factorization.

20070726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 20070726 is about 4480.0363837808. The cubic root of 20070726 is about 271.7613517335.

Adding to 20070726 its reverse (62707002), we get a palindrome (82777728).

The spelling of 20070726 in words is "twenty million, seventy thousand, seven hundred twenty-six".

Divisors: 1 2 3 6 13 19 26 29 38 39 57 58 78 87 114 174 247 377 467 494 551 741 754 934 1102 1131 1401 1482 1653 2262 2802 3306 6071 7163 8873 12142 13543 14326 17746 18213 21489 26619 27086 36426 40629 42978 53238 81258 115349 176059 230698 257317 346047 352118 514634 528177 692094 771951 1056354 1543902 3345121 6690242 10035363 20070726