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387741406 = 213172343887
BaseRepresentation
bin10111000111000…
…111011011011110
31000000121022012211
4113013013123132
51243230211111
6102250351034
712415514263
oct2707073336
91000538184
10387741406
11189962948
12a9a2b47a
136243b9b0
14396d326a
1524091521
hex171c76de

387741406 has 64 divisors (see below), whose sum is σ = 708922368. Its totient is φ = 157183488.

The previous prime is 387741391. The next prime is 387741467. The reversal of 387741406 is 604147783.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 436695 + ... + 437581.

It is an arithmetic number, because the mean of its divisors is an integer number (11076912).

Almost surely, 2387741406 is an apocalyptic number.

387741406 is a deficient number, since it is larger than the sum of its proper divisors (321180962).

387741406 is a wasteful number, since it uses less digits than its factorization.

387741406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 387741406 is about 19691.1504488692. The cubic root of 387741406 is about 729.2012317648.

The spelling of 387741406 in words is "three hundred eighty-seven million, seven hundred forty-one thousand, four hundred six".

Divisors: 1 2 13 17 23 26 34 43 46 86 221 299 391 442 559 598 731 782 887 989 1118 1462 1774 1978 5083 9503 10166 11531 12857 15079 16813 19006 20401 23062 25714 30158 33626 38141 40802 76282 196027 218569 265213 346817 392054 437138 495833 530426 648397 693634 877243 991666 1296794 1754486 4508621 8429161 9017242 11404159 14913131 16858322 22808318 29826262 193870703 387741406