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220266641 = 7127247769
BaseRepresentation
bin11010010000100…
…00000010010001
3120100110201000202
431020100002101
5422342013031
633505024545
75313143540
oct1510200221
9510421022
10220266641
11103375651
1261925155
1336831bba
142137a157
151450e2cb
hexd210091

220266641 has 8 divisors (see below), whose sum is σ = 253716480. Its totient is φ = 187312608.

The previous prime is 220266617. The next prime is 220266643. The reversal of 220266641 is 146662022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220266641 - 26 = 220266577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220266643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122996 + ... + 124773.

It is an arithmetic number, because the mean of its divisors is an integer number (31714560).

Almost surely, 2220266641 is an apocalyptic number.

It is an amenable number.

220266641 is a deficient number, since it is larger than the sum of its proper divisors (33449839).

220266641 is a wasteful number, since it uses less digits than its factorization.

220266641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247903.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 220266641 is about 14841.3827186014. The cubic root of 220266641 is about 603.9248632833.

The spelling of 220266641 in words is "two hundred twenty million, two hundred sixty-six thousand, six hundred forty-one".

Divisors: 1 7 127 889 247769 1734383 31466663 220266641