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80260340 = 225231491171
BaseRepresentation
bin1001100100010…
…10110011110100
312121000122111012
410302022303310
5131021312330
611544131352
71663126106
oct462126364
9177018435
1080260340
1141339866
1222a66b58
1313821a34
14a933576
1570a5c95
hex4c8acf4

80260340 has 48 divisors (see below), whose sum is σ = 177206400. Its totient is φ = 30476160.

The previous prime is 80260339. The next prime is 80260373. The reversal of 80260340 is 4306208.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 67955 + ... + 69125.

It is an arithmetic number, because the mean of its divisors is an integer number (3691800).

Almost surely, 280260340 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 80260340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88603200).

80260340 is an abundant number, since it is smaller than the sum of its proper divisors (96946060).

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

80260340 is a wasteful number, since it uses less digits than its factorization.

80260340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352 (or 1350 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 80260340 is about 8958.8135375171. The cubic root of 80260340 is about 431.3538365099.

Adding to 80260340 its reverse (4306208), we get a palindrome (84566548).

The spelling of 80260340 in words is "eighty million, two hundred sixty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 23 46 92 115 149 230 298 460 596 745 1171 1490 2342 2980 3427 4684 5855 6854 11710 13708 17135 23420 26933 34270 53866 68540 107732 134665 174479 269330 348958 538660 697916 872395 1744790 3489580 4013017 8026034 16052068 20065085 40130170 80260340