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75379680 = 2533517449
BaseRepresentation
bin1000111111000…
…11001111100000
312020211200111000
410133203033200
5123244122210
611251352000
71603500555
oct437431740
9166750430
1075379680
1139605962
12212b2600
131280337c
14a022a2c
15693eac0
hex47e33e0

75379680 has 96 divisors (see below), whose sum is σ = 263844000. Its totient is φ = 20100096.

The previous prime is 75379673. The next prime is 75379691. The reversal of 75379680 is 8697357.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4405 + ... + 13044.

It is an arithmetic number, because the mean of its divisors is an integer number (2748375).

Almost surely, 275379680 is an apocalyptic number.

It is an amenable number.

75379680 is an abundant number, since it is smaller than the sum of its proper divisors (188464320).

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

75379680 is a wasteful number, since it uses less digits than its factorization.

75379680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17473 (or 17459 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 75379680 is about 8682.1471998579. The cubic root of 75379680 is about 422.4267674153.

The spelling of 75379680 in words is "seventy-five million, three hundred seventy-nine thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 72 80 90 96 108 120 135 144 160 180 216 240 270 288 360 432 480 540 720 864 1080 1440 2160 4320 17449 34898 52347 69796 87245 104694 139592 157041 174490 209388 261735 279184 314082 348980 418776 471123 523470 558368 628164 697960 785205 837552 942246 1046940 1256328 1395920 1570410 1675104 1884492 2093880 2355615 2512656 2791840 3140820 3768984 4187760 4711230 5025312 6281640 7537968 8375520 9422460 12563280 15075936 18844920 25126560 37689840 75379680