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828751940 = 225471814871
BaseRepresentation
bin110001011001011…
…100000001000100
32010202102221221022
4301121130001010
53144130030230
6214123010312
726352163262
oct6131340104
92122387838
10828751940
11395899665
121b1669998
1310290ba83
147c0d1432
154cb561e5
hex3165c044

828751940 has 48 divisors (see below), whose sum is σ = 1787595264. Its totient is φ = 322588800.

The previous prime is 828751933. The next prime is 828751951. The reversal of 828751940 is 49157828.

It is a junction number, because it is equal to n+sod(n) for n = 828751891 and 828751900.

It is an unprimeable number.

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, 167705 + ... + 172575.

It is an arithmetic number, because the mean of its divisors is an integer number (37241568).

Almost surely, 2828751940 is an apocalyptic number.

It is an amenable number.

828751940 is an abundant number, since it is smaller than the sum of its proper divisors (958843324).

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

828751940 is a wasteful number, since it uses less digits than its factorization.

828751940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108 (or 5106 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 828751940 is about 28788.0520355233. The cubic root of 828751940 is about 939.3083564680.

The spelling of 828751940 in words is "eight hundred twenty-eight million, seven hundred fifty-one thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 47 94 181 188 235 362 470 724 905 940 1810 3620 4871 8507 9742 17014 19484 24355 34028 42535 48710 85070 97420 170140 228937 457874 881651 915748 1144685 1763302 2289370 3526604 4408255 4578740 8816510 17633020 41437597 82875194 165750388 207187985 414375970 828751940