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830371140 = 223255387041
BaseRepresentation
bin110001011111100…
…111010101000100
32010212111020001200
4301133213111010
53200033334030
6214221422500
726402016054
oct6137472504
92125436050
10830371140
113967a5145
121b210aa30
13103057a91
147c3d3564
154cd75d60
hex317e7544

830371140 has 72 divisors (see below), whose sum is σ = 2566346328. Its totient is φ = 217251840.

The previous prime is 830371097. The next prime is 830371183. The reversal of 830371140 is 41173038.

It is an interprime number because it is at equal distance from previous prime (830371097) and next prime (830371183).

It can be written as a sum of positive squares in 4 ways, for example, as 439992576 + 390378564 = 20976^2 + 19758^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33981 + ... + 53060.

It is an arithmetic number, because the mean of its divisors is an integer number (35643699).

Almost surely, 2830371140 is an apocalyptic number.

It is an amenable number.

830371140 is an abundant number, since it is smaller than the sum of its proper divisors (1735975188).

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

830371140 is a wasteful number, since it uses less digits than its factorization.

830371140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87109 (or 87104 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 830371140 is about 28816.1610906102. The cubic root of 830371140 is about 939.9196928526.

The spelling of 830371140 in words is "eight hundred thirty million, three hundred seventy-one thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 53 60 90 106 159 180 212 265 318 477 530 636 795 954 1060 1590 1908 2385 3180 4770 9540 87041 174082 261123 348164 435205 522246 783369 870410 1044492 1305615 1566738 1740820 2611230 3133476 3916845 4613173 5222460 7833690 9226346 13839519 15667380 18452692 23065865 27679038 41518557 46131730 55358076 69197595 83037114 92263460 138395190 166074228 207592785 276790380 415185570 830371140