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11913152586940 = 22511313788946103
BaseRepresentation
bin1010110101011011111100…
…1110100110010010111100
31120011212221002100101221101
42231112333032212102330
53030141114030240230
641200454324342444
72336461012124353
oct255267716462274
946155832311841
1011913152586940
113883381072a70
121404a22844a24
13685536a78387
142d285768699a
15159d4d728aca
hexad5bf3a64bc

11913152586940 has 96 divisors (see below), whose sum is σ = 28173689671680. Its totient is φ = 4192110182400.

The previous prime is 11913152586871. The next prime is 11913152587003. The reversal of 11913152586940 is 4968525131911.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

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, 258379929 + ... + 258426031.

It is an arithmetic number, because the mean of its divisors is an integer number (293475934080).

Almost surely, 211913152586940 is an apocalyptic number.

11913152586940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11913152586940 is an abundant number, since it is smaller than the sum of its proper divisors (16260537084740).

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

11913152586940 is a wasteful number, since it uses less digits than its factorization.

11913152586940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84043 (or 84041 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 55.

The spelling of 11913152586940 in words is "eleven trillion, nine hundred thirteen billion, one hundred fifty-two million, five hundred eighty-six thousand, nine hundred forty".

Divisors: 1 2 4 5 10 11 20 22 31 44 55 62 110 124 155 220 310 341 620 682 1364 1705 3410 6820 37889 46103 75778 92206 151556 184412 189445 230515 378890 416779 461030 507133 757780 833558 922060 1014266 1174559 1429193 1667116 2028532 2083895 2349118 2535665 2858386 4167790 4698236 5071330 5716772 5872795 7145965 8335580 10142660 11745590 12920149 14291930 15721123 23491180 25840298 28583860 31442246 51680596 62884492 64600745 78605615 129201490 157211230 258402980 314422460 1746796567 3493593134 6987186268 8733982835 17467965670 19214762237 34935931340 38429524474 54150693577 76859048948 96073811185 108301387154 192147622370 216602774308 270753467885 384295244740 541506935770 595657629347 1083013871540 1191315258694 2382630517388 2978288146735 5956576293470 11913152586940