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85312530380 = 225711173258691
BaseRepresentation
bin100111101110100000…
…1011110011111001100
322011012120120120122102
41033131001132133030
52344210001433010
6103105251334232
76110060354240
oct1173501363714
9264176516572
1085312530380
11331a9776860
121464abb1378
13807795aa0c
1441b4552420
152344aabba5
hex13dd05e7cc

85312530380 has 96 divisors (see below), whose sum is σ = 236502830592. Its totient is φ = 25026739200.

The previous prime is 85312530377. The next prime is 85312530409. The reversal of 85312530380 is 8303521358.

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, 1603166 + ... + 1655525.

It is an arithmetic number, because the mean of its divisors is an integer number (2463571152).

Almost surely, 285312530380 is an apocalyptic number.

It is an amenable number.

85312530380 is an abundant number, since it is smaller than the sum of its proper divisors (151190300212).

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

85312530380 is a wasteful number, since it uses less digits than its factorization.

85312530380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258735 (or 3258733 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 85312530380 in words is "eighty-five billion, three hundred twelve million, five hundred thirty thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 11 14 17 20 22 28 34 35 44 55 68 70 77 85 110 119 140 154 170 187 220 238 308 340 374 385 476 595 748 770 935 1190 1309 1540 1870 2380 2618 3740 5236 6545 13090 26180 3258691 6517382 13034764 16293455 22810837 32586910 35845601 45621674 55397747 65173820 71691202 91243348 110795494 114054185 143382404 179228005 221590988 228108370 250919207 276988735 358456010 387784229 456216740 501838414 553977470 609375217 716912020 775568458 1003676828 1107954940 1218750434 1254596035 1551136916 1938921145 2437500868 2509192070 3046876085 3877842290 4265626519 5018384140 6093752170 7755684580 8531253038 12187504340 17062506076 21328132595 42656265190 85312530380