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380312352 = 25327712657
BaseRepresentation
bin10110101010110…
…001101100100000
3222111121212110200
4112222301230200
51234324443402
6101423225200
712265413240
oct2652615440
9874555420
10380312352
11185749332
12a7448200
1360a3a3c4
143871bb20
15235c521c
hex16ab1b20

380312352 has 144 divisors (see below), whose sum is σ = 1253895552. Its totient is φ = 107089920.

The previous prime is 380312327. The next prime is 380312363. The reversal of 380312352 is 253213083.

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

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 141808 + ... + 144464.

It is an arithmetic number, because the mean of its divisors is an integer number (8707608).

Almost surely, 2380312352 is an apocalyptic number.

380312352 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380312352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626947776).

380312352 is an abundant number, since it is smaller than the sum of its proper divisors (873583200).

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

380312352 is a wasteful number, since it uses less digits than its factorization.

380312352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751 (or 2740 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 380312352 is about 19501.5987036961. The cubic root of 380312352 is about 724.5140473967.

The spelling of 380312352 in words is "three hundred eighty million, three hundred twelve thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 71 72 84 96 112 126 142 144 168 213 224 252 284 288 336 426 497 504 568 639 672 852 994 1008 1136 1278 1491 1704 1988 2016 2272 2556 2657 2982 3408 3976 4473 5112 5314 5964 6816 7952 7971 8946 10224 10628 11928 15904 15942 17892 18599 20448 21256 23856 23913 31884 35784 37198 42512 47712 47826 55797 63768 71568 74396 85024 95652 111594 127536 143136 148792 167391 188647 191304 223188 255072 297584 334782 377294 382608 446376 565941 595168 669564 754588 765216 892752 1131882 1320529 1339128 1509176 1697823 1785504 2263764 2641058 2678256 3018352 3395646 3961587 4527528 5282116 5356512 6036704 6791292 7923174 9055056 10564232 11884761 13582584 15846348 18110112 21128464 23769522 27165168 31692696 42256928 47539044 54330336 63385392 95078088 126770784 190156176 380312352