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472230390 = 235113139301
BaseRepresentation
bin11100001001011…
…010100111110110
31012220120210022110
4130021122213312
51431342333030
6114505311450
714462614662
oct3411324766
91186523273
10472230390
1122261a755
12112195586
1376ab1388
1446a078a2
152b6d01b0
hex1c25a9f6

472230390 has 32 divisors (see below), whose sum is σ = 1143390816. Its totient is φ = 124812800.

The previous prime is 472230379. The next prime is 472230391. The reversal of 472230390 is 93032274.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472230391) 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, 66261 + ... + 73040.

It is an arithmetic number, because the mean of its divisors is an integer number (35730963).

Almost surely, 2472230390 is an apocalyptic number.

472230390 is an abundant number, since it is smaller than the sum of its proper divisors (671160426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

472230390 is a wasteful number, since it uses less digits than its factorization.

472230390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139424.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 472230390 is about 21730.8626151840. The cubic root of 472230390 is about 778.7259444109.

The spelling of 472230390 in words is "four hundred seventy-two million, two hundred thirty thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 113 226 339 565 678 1130 1695 3390 139301 278602 417903 696505 835806 1393010 2089515 4179030 15741013 31482026 47223039 78705065 94446078 157410130 236115195 472230390