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869431050 = 233522328001
BaseRepresentation
bin110011110100100…
…111011100001010
32020120222200012000
4303310213130022
53240033243200
6222134531430
730355020255
oct6364473412
92216880160
10869431050
11406853464
12203206b76
1310b182757
148368009c
15514de300
hex33d2770a

869431050 has 96 divisors (see below), whose sum is σ = 2500018560. Its totient is φ = 221760000.

The previous prime is 869431039. The next prime is 869431081. The reversal of 869431050 is 50134968.

It is a junction number, because it is equal to n+sod(n) for n = 869430996 and 869431014.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17050 + ... + 45050.

It is an arithmetic number, because the mean of its divisors is an integer number (26041860).

Almost surely, 2869431050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869431050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1250009280).

869431050 is an abundant number, since it is smaller than the sum of its proper divisors (1630587510).

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

869431050 is a wasteful number, since it uses less digits than its factorization.

869431050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28045 (or 28034 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 869431050 is about 29486.1162244199. The cubic root of 869431050 is about 954.4321249498.

The spelling of 869431050 in words is "eight hundred sixty-nine million, four hundred thirty-one thousand, fifty".

Divisors: 1 2 3 5 6 9 10 15 18 23 25 27 30 45 46 50 54 69 75 90 115 135 138 150 207 225 230 270 345 414 450 575 621 675 690 1035 1150 1242 1350 1725 2070 3105 3450 5175 6210 10350 15525 28001 31050 56002 84003 140005 168006 252009 280010 420015 504018 644023 700025 756027 840030 1260045 1288046 1400050 1512054 1932069 2100075 2520090 3220115 3780135 3864138 4200150 5796207 6300225 6440230 7560270 9660345 11592414 12600450 16100575 17388621 18900675 19320690 28981035 32201150 34777242 37801350 48301725 57962070 86943105 96603450 144905175 173886210 289810350 434715525 869431050