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472172077 = 13131277259
BaseRepresentation
bin11100001001001…
…100011000101101
31012220110211022201
4130021030120231
51431334001302
6114504141501
714462252656
oct3411143055
91186424281
10472172077
1122258a963
12112167891
1376a90980
14469d052d
152b6bcc87
hex1c24c62d

472172077 has 8 divisors (see below), whose sum is σ = 512376480. Its totient is φ = 432522480.

The previous prime is 472172039. The next prime is 472172087. The reversal of 472172077 is 770271274.

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

It is not a de Polignac number, because 472172077 - 211 = 472170029 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 (472172087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136927 + ... + 140332.

It is an arithmetic number, because the mean of its divisors is an integer number (64047060).

Almost surely, 2472172077 is an apocalyptic number.

It is an amenable number.

472172077 is a deficient number, since it is larger than the sum of its proper divisors (40204403).

472172077 is a wasteful number, since it uses less digits than its factorization.

472172077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277403.

The product of its (nonzero) digits is 38416, while the sum is 37.

The square root of 472172077 is about 21729.5208644830. The cubic root of 472172077 is about 778.6938896369.

It can be divided in two parts, 47217 and 2077, that added together give a palindrome (49294).

The spelling of 472172077 in words is "four hundred seventy-two million, one hundred seventy-two thousand, seventy-seven".

Divisors: 1 13 131 1703 277259 3604367 36320929 472172077