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472813308 = 223311297373
BaseRepresentation
bin11100001011101…
…000111011111100
31012221200101221000
4130023220323330
51432020011213
6114530010300
714500563312
oct3413507374
91187611830
10472813308
11222988700
12112416990
1376c567b6
1446b1a0b2
152b797c73
hex1c2e8efc

472813308 has 144 divisors (see below), whose sum is σ = 1364920480. Its totient is φ = 141419520.

The previous prime is 472813307. The next prime is 472813399. The reversal of 472813308 is 803318274.

472813308 is a `hidden beast` number, since 47 + 281 + 330 + 8 = 666.

It is a super-3 number, since 3×4728133083 (a number of 27 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472813307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1267410 + ... + 1267782.

Almost surely, 2472813308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 472813308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682460240).

472813308 is an abundant number, since it is smaller than the sum of its proper divisors (892107172).

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

472813308 is a wasteful number, since it uses less digits than its factorization.

472813308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 472813308 is about 21744.2706936793. The cubic root of 472813308 is about 779.0462306739.

The spelling of 472813308 in words is "four hundred seventy-two million, eight hundred thirteen thousand, three hundred eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 97 99 108 121 132 194 198 242 291 297 363 373 388 396 484 582 594 726 746 873 1067 1089 1119 1164 1188 1452 1492 1746 2134 2178 2238 2619 3201 3267 3357 3492 4103 4268 4356 4476 5238 6402 6534 6714 8206 9603 10071 10476 11737 12309 12804 13068 13428 16412 19206 20142 23474 24618 28809 35211 36181 36927 38412 40284 45133 46948 49236 57618 70422 72362 73854 90266 105633 108543 110781 115236 135399 140844 144724 147708 180532 211266 217086 221562 270798 316899 325629 397991 406197 422532 434172 443124 541596 633798 651258 795982 812394 976887 1193973 1218591 1267596 1302516 1591964 1624788 1953774 2387946 2437182 3581919 3907548 4377901 4775892 4874364 7163838 8755802 10745757 13133703 14327676 17511604 21491514 26267406 39401109 42983028 52534812 78802218 118203327 157604436 236406654 472813308