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75065120 = 25513151239
BaseRepresentation
bin1000111100101…
…10011100100000
312020020200222122
410132112130200
5123204040440
611240523412
71601020514
oct436263440
9166220878
1075065120
1139410599
1221180568
1312723140
149d80144
1568cb7b5
hex4796720

75065120 has 96 divisors (see below), whose sum is σ = 193052160. Its totient is φ = 27417600.

The previous prime is 75065093. The next prime is 75065129. The reversal of 75065120 is 2156057.

It is a super-2 number, since 2×750651202 = 11269544481228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 75065120.

It is not an unprimeable number, because it can be changed into a prime (75065129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313961 + ... + 314199.

It is an arithmetic number, because the mean of its divisors is an integer number (2010960).

Almost surely, 275065120 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 75065120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96526080).

75065120 is an abundant number, since it is smaller than the sum of its proper divisors (117987040).

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

75065120 is a wasteful number, since it uses less digits than its factorization.

75065120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 75065120 is about 8664.0129270448. The cubic root of 75065120 is about 421.8383514209.

The spelling of 75065120 in words is "seventy-five million, sixty-five thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 151 160 208 239 260 302 416 478 520 604 755 956 1040 1195 1208 1510 1912 1963 2080 2390 2416 3020 3107 3824 3926 4780 4832 6040 6214 7648 7852 9560 9815 12080 12428 15535 15704 19120 19630 24160 24856 31070 31408 36089 38240 39260 49712 62140 62816 72178 78520 99424 124280 144356 157040 180445 248560 288712 314080 360890 469157 497120 577424 721780 938314 1154848 1443560 1876628 2345785 2887120 3753256 4691570 5774240 7506512 9383140 15013024 18766280 37532560 75065120