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348608640 = 2735315857
BaseRepresentation
bin10100110001110…
…101100010000000
3220021222011011010
4110301311202000
51203220434030
654331520520
711432060502
oct2461654200
9807864133
10348608640
11169864916
12988b9140
13572b9b03
1434427d72
15209116b0
hex14c75880

348608640 has 128 divisors (see below), whose sum is σ = 1147230720. Its totient is φ = 89948160.

The previous prime is 348608581. The next prime is 348608641. The reversal of 348608640 is 46806843.

348608640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (348608641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56592 + ... + 62448.

It is an arithmetic number, because the mean of its divisors is an integer number (8962740).

Almost surely, 2348608640 is an apocalyptic number.

348608640 is a gapful number since it is divisible by the number (30) 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 348608640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573615360).

348608640 is an abundant number, since it is smaller than the sum of its proper divisors (798622080).

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

348608640 is a wasteful number, since it uses less digits than its factorization.

348608640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5910 (or 5898 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 348608640 is about 18671.0642439043. The cubic root of 348608640 is about 703.7947921185.

The spelling of 348608640 in words is "three hundred forty-eight million, six hundred eight thousand, six hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 32 40 48 60 62 64 80 93 96 120 124 128 155 160 186 192 240 248 310 320 372 384 465 480 496 620 640 744 930 960 992 1240 1488 1860 1920 1984 2480 2976 3720 3968 4960 5857 5952 7440 9920 11714 11904 14880 17571 19840 23428 29285 29760 35142 46856 58570 59520 70284 87855 93712 117140 140568 175710 181567 187424 234280 281136 351420 363134 374848 468560 544701 562272 702840 726268 749696 907835 937120 1089402 1124544 1405680 1452536 1815670 1874240 2178804 2249088 2723505 2811360 2905072 3631340 3748480 4357608 5447010 5622720 5810144 7262680 8715216 10894020 11245440 11620288 14525360 17430432 21788040 23240576 29050720 34860864 43576080 58101440 69721728 87152160 116202880 174304320 348608640