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472269221 = 3137411743
BaseRepresentation
bin11100001001100…
…100000110100101
31012220122202120122
4130021210012211
51431400103341
6114510211325
714463136124
oct3411440645
91186582518
10472269221
11222646946
121121b3b45
1376ac5c58
1446a17abb
152b6db94b
hex1c2641a5

472269221 has 8 divisors (see below), whose sum is σ = 500680704. Its totient is φ = 444681360.

The previous prime is 472269199. The next prime is 472269223. The reversal of 472269221 is 122962274.

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

It is not a de Polignac number, because 472269221 - 210 = 472268197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472269223) 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, 204725 + ... + 207018.

It is an arithmetic number, because the mean of its divisors is an integer number (62585088).

Almost surely, 2472269221 is an apocalyptic number.

It is an amenable number.

472269221 is a deficient number, since it is larger than the sum of its proper divisors (28411483).

472269221 is a wasteful number, since it uses less digits than its factorization.

472269221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411811.

The product of its digits is 24192, while the sum is 35.

The square root of 472269221 is about 21731.7560496155. The cubic root of 472269221 is about 778.7472884264.

The spelling of 472269221 in words is "four hundred seventy-two million, two hundred sixty-nine thousand, two hundred twenty-one".

Divisors: 1 31 37 1147 411743 12764033 15234491 472269221