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472213612 = 2213192916481
BaseRepresentation
bin11100001001010…
…110100001101100
31012220112221022001
4130021112201230
51431341313422
6114505102044
714462515033
oct3411264154
91186487261
10472213612
11222609092
12112187924
1376aa6850
1446a0171a
152b6ca227
hex1c25686c

472213612 has 48 divisors (see below), whose sum is σ = 969141600. Its totient is φ = 199342080.

The previous prime is 472213601. The next prime is 472213657. The reversal of 472213612 is 216312274.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20412 + ... + 36892.

It is an arithmetic number, because the mean of its divisors is an integer number (20190450).

Almost surely, 2472213612 is an apocalyptic number.

It is an amenable number.

472213612 is an abundant number, since it is smaller than the sum of its proper divisors (496927988).

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

472213612 is a wasteful number, since it uses less digits than its factorization.

472213612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16546 (or 16544 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 472213612 is about 21730.4765709360. The cubic root of 472213612 is about 778.7167217808.

Adding to 472213612 its reverse (216312274), we get a palindrome (688525886).

The spelling of 472213612 in words is "four hundred seventy-two million, two hundred thirteen thousand, six hundred twelve".

Divisors: 1 2 4 13 19 26 29 38 52 58 76 116 247 377 494 551 754 988 1102 1508 2204 7163 14326 16481 28652 32962 65924 214253 313139 428506 477949 626278 857012 955898 1252556 1911796 4070807 6213337 8141614 9081031 12426674 16283228 18162062 24853348 36324124 118053403 236106806 472213612