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3481085920 = 255131725791
BaseRepresentation
bin1100111101111101…
…0010011111100000
322222121021111011011
43033133102133200
524112124222140
61333231430304
7152156512354
oct31737223740
98877244134
103481085920
111526a89414
12811985394
13436276570
14250477464
15155922cea
hexcf7d27e0

3481085920 has 144 divisors (see below), whose sum is σ = 9409938048. Its totient is φ = 1209507840.

The previous prime is 3481085917. The next prime is 3481085921. The reversal of 3481085920 is 295801843.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3481085921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 598225 + ... + 604015.

It is an arithmetic number, because the mean of its divisors is an integer number (65346792).

Almost surely, 23481085920 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 3481085920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4704969024).

3481085920 is an abundant number, since it is smaller than the sum of its proper divisors (5928852128).

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

3481085920 is a wasteful number, since it uses less digits than its factorization.

3481085920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5853 (or 5828 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 3481085920 is about 59000.7281311002. The cubic root of 3481085920 is about 1515.5545784519.

The spelling of 3481085920 in words is "three billion, four hundred eighty-one million, eighty-five thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 17 20 26 32 34 40 52 65 68 80 85 104 130 136 160 170 208 221 260 272 289 340 416 442 520 544 578 680 884 1040 1105 1156 1360 1445 1768 2080 2210 2312 2720 2890 3536 3757 4420 4624 5780 5791 7072 7514 8840 9248 11560 11582 15028 17680 18785 23120 23164 28955 30056 35360 37570 46240 46328 57910 60112 75140 75283 92656 98447 115820 120224 150280 150566 185312 196894 231640 300560 301132 376415 393788 463280 492235 601120 602264 752830 787576 926560 984470 1204528 1279811 1505660 1575152 1673599 1968940 2409056 2559622 3011320 3150304 3347198 3937880 5119244 6022640 6399055 6694396 7875760 8367995 10238488 12045280 12798110 13388792 15751520 16735990 20476976 21756787 25596220 26777584 33471980 40953952 43513574 51192440 53555168 66943960 87027148 102384880 108783935 133887920 174054296 204769760 217567870 267775840 348108592 435135740 696217184 870271480 1740542960 3481085920