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220061401 = 72192343239
BaseRepresentation
bin11010001110111…
…01111011011001
3120100002021111021
431013131323121
5422313431101
633500402441
75311330300
oct1507357331
9510067437
10220061401
1110324542a
1261846421
133678c661
1421325437
15144bd5a1
hexd1dded9

220061401 has 48 divisors (see below), whose sum is σ = 288921600. Its totient is φ = 166253472.

The previous prime is 220061399. The next prime is 220061419. The reversal of 220061401 is 104160022.

It is not a de Polignac number, because 220061401 - 21 = 220061399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220061431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 920640 + ... + 920878.

It is an arithmetic number, because the mean of its divisors is an integer number (6019200).

Almost surely, 2220061401 is an apocalyptic number.

It is an amenable number.

220061401 is a deficient number, since it is larger than the sum of its proper divisors (68860199).

220061401 is a wasteful number, since it uses less digits than its factorization.

220061401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 220061401 is about 14834.4666570794. The cubic root of 220061401 is about 603.7372300037.

The spelling of 220061401 in words is "two hundred twenty million, sixty-one thousand, four hundred one".

Divisors: 1 7 19 23 43 49 133 161 239 301 437 817 931 989 1127 1673 2107 3059 4541 5497 5719 6923 10277 11711 18791 21413 31787 38479 40033 48461 71939 104443 131537 195263 222509 236371 269353 503573 731101 920759 1366841 1654597 4491049 5117707 9567887 11582179 31437343 220061401