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755245380 = 2235137139661
BaseRepresentation
bin101101000001000…
…010000101000100
31221122010102220010
4231001002011010
53021320323010
6202535310220
724500323401
oct5501020504
91848112803
10755245380
1135835303a
12190b1b370
13c0613176
14724392a8
1546486620
hex2d042144

755245380 has 96 divisors (see below), whose sum is σ = 2148693120. Its totient is φ = 198190080.

The previous prime is 755245363. The next prime is 755245391. The reversal of 755245380 is 83542557.

It is a super-2 number, since 2×7552453802 = 1140791168022688800, which contains 22 as substring.

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, 1142250 + ... + 1142910.

It is an arithmetic number, because the mean of its divisors is an integer number (22382220).

Almost surely, 2755245380 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 755245380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1074346560).

755245380 is an abundant number, since it is smaller than the sum of its proper divisors (1393447740).

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

755245380 is a wasteful number, since it uses less digits than its factorization.

755245380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 39.

The square root of 755245380 is about 27481.7281116017. The cubic root of 755245380 is about 910.6734860571.

The spelling of 755245380 in words is "seven hundred fifty-five million, two hundred forty-five thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 137 139 274 278 411 417 548 556 661 685 695 822 834 1322 1370 1390 1644 1668 1983 2055 2085 2644 2740 2780 3305 3966 4110 4170 6610 7932 8220 8340 9915 13220 19043 19830 38086 39660 57129 76172 90557 91879 95215 114258 181114 183758 190430 228516 271671 275637 285645 362228 367516 380860 452785 459395 543342 551274 571290 905570 918790 1086684 1102548 1142580 1358355 1378185 1811140 1837580 2716710 2756370 5433420 5512740 12587423 25174846 37762269 50349692 62937115 75524538 125874230 151049076 188811345 251748460 377622690 755245380