Search a number
-
+
719943140 = 22576776753
BaseRepresentation
bin101010111010010…
…111010111100100
31212011200220022202
4222322113113210
52433301140030
6155234514032
723561262410
oct5272272744
91764626282
10719943140
1133a430a34
12181135918
13b6202977
146b889d40
1543311745
hex2ae975e4

719943140 has 48 divisors (see below), whose sum is σ = 1753675392. Its totient is φ = 243150336.

The previous prime is 719943139. The next prime is 719943143. The reversal of 719943140 is 41349917.

It is a junction number, because it is equal to n+sod(n) for n = 719943094 and 719943103.

It is not an unprimeable number, because it can be changed into a prime (719943143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28997 + ... + 47756.

It is an arithmetic number, because the mean of its divisors is an integer number (36534904).

Almost surely, 2719943140 is an apocalyptic number.

719943140 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

719943140 is an abundant number, since it is smaller than the sum of its proper divisors (1033732252).

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

719943140 is a wasteful number, since it uses less digits than its factorization.

719943140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76836 (or 76834 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 719943140 is about 26831.7561855351. The cubic root of 719943140 is about 896.2573549242.

The spelling of 719943140 in words is "seven hundred nineteen million, nine hundred forty-three thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 67 70 134 140 268 335 469 670 938 1340 1876 2345 4690 9380 76753 153506 307012 383765 537271 767530 1074542 1535060 2149084 2686355 5142451 5372710 10284902 10745420 20569804 25712255 35997157 51424510 71994314 102849020 143988628 179985785 359971570 719943140