Search a number
-
+
220127390 = 257171131637
BaseRepresentation
bin11010001111011…
…10000010011110
3120100012122000022
431013232002132
5422323034030
633502032142
75312023550
oct1507560236
9510178008
10220127390
1110328aa6a
1261878652
13367b36c2
14213414d0
15144d2de5
hexd1ee09e

220127390 has 64 divisors (see below), whose sum is σ = 484009344. Its totient is φ = 70361088.

The previous prime is 220127381. The next prime is 220127399. The reversal of 220127390 is 93721022.

It is an interprime number because it is at equal distance from previous prime (220127381) and next prime (220127399).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220127399) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133652 + ... + 135288.

It is an arithmetic number, because the mean of its divisors is an integer number (7562646).

Almost surely, 2220127390 is an apocalyptic number.

220127390 is an abundant number, since it is smaller than the sum of its proper divisors (263881954).

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

220127390 is a wasteful number, since it uses less digits than its factorization.

220127390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 220127390 is about 14836.6906687442. The cubic root of 220127390 is about 603.7975707909.

The spelling of 220127390 in words is "two hundred twenty million, one hundred twenty-seven thousand, three hundred ninety".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 113 119 170 226 238 565 595 791 1130 1190 1582 1637 1921 3274 3842 3955 7910 8185 9605 11459 13447 16370 19210 22918 26894 27829 55658 57295 67235 114590 134470 139145 184981 194803 278290 369962 389606 924905 974015 1294867 1849810 1948030 2589734 3144677 6289354 6474335 12948670 15723385 22012739 31446770 44025478 110063695 220127390