Search a number
-
+
387412704 = 25327316199
BaseRepresentation
bin10111000101110…
…111001011100000
3222222222121022200
4113011313023200
51243134201304
6102235333200
712412645050
oct2705671340
9888877280
10387412704
11189758998
12a98b1200
13623551b3
1439649560
1524028e39
hex171772e0

387412704 has 144 divisors (see below), whose sum is σ = 1299916800. Its totient is φ = 107101440.

The previous prime is 387412691. The next prime is 387412747. The reversal of 387412704 is 407214783.

It is a happy number.

387412704 is a `hidden beast` number, since 387 + 4 + 1 + 270 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59397 + ... + 65595.

It is an arithmetic number, because the mean of its divisors is an integer number (9027200).

Almost surely, 2387412704 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 387412704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (649958400).

387412704 is an abundant number, since it is smaller than the sum of its proper divisors (912504096).

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

387412704 is a wasteful number, since it uses less digits than its factorization.

387412704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6253 (or 6242 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 387412704 is about 19682.8022395186. The cubic root of 387412704 is about 728.9951170170.

The spelling of 387412704 in words is "three hundred eighty-seven million, four hundred twelve thousand, seven hundred four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 31 32 36 42 48 56 62 63 72 84 93 96 112 124 126 144 168 186 217 224 248 252 279 288 336 372 434 496 504 558 651 672 744 868 992 1008 1116 1302 1488 1736 1953 2016 2232 2604 2976 3472 3906 4464 5208 6199 6944 7812 8928 10416 12398 15624 18597 20832 24796 31248 37194 43393 49592 55791 62496 74388 86786 99184 111582 130179 148776 173572 192169 198368 223164 260358 297552 347144 384338 390537 446328 520716 576507 595104 694288 768676 781074 892656 1041432 1153014 1345183 1388576 1537352 1562148 1729521 1785312 2082864 2306028 2690366 3074704 3124296 3459042 4035549 4165728 4612056 5380732 6149408 6248592 6918084 8071098 9224112 10761464 12106647 12497184 13836168 16142196 18448224 21522928 24213294 27672336 32284392 43045856 48426588 55344672 64568784 96853176 129137568 193706352 387412704