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220668074 = 211371731567
BaseRepresentation
bin11010010011100…
…10000010101010
3120101020002200122
431021302002222
5422442334244
633521403242
75316435104
oct1511620252
9511202618
10220668074
1110361a210
1261a99522
1336942833
1421442574
151458d1ee
hexd2720aa

220668074 has 32 divisors (see below), whose sum is σ = 373234176. Its totient is φ = 96966720.

The previous prime is 220668067. The next prime is 220668079. The reversal of 220668074 is 470866022.

It is not an unprimeable number, because it can be changed into a prime (220668079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140039 + ... + 141605.

It is an arithmetic number, because the mean of its divisors is an integer number (11663568).

Almost surely, 2220668074 is an apocalyptic number.

220668074 is a deficient number, since it is larger than the sum of its proper divisors (152566102).

220668074 is a wasteful number, since it uses less digits than its factorization.

220668074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 220668074 is about 14854.9006728419. The cubic root of 220668074 is about 604.2915222852.

The spelling of 220668074 in words is "two hundred twenty million, six hundred sixty-eight thousand, seventy-four".

Divisors: 1 2 11 22 37 74 173 346 407 814 1567 1903 3134 3806 6401 12802 17237 34474 57979 70411 115958 140822 271091 542182 637769 1275538 2982001 5964002 10030367 20060734 110334037 220668074