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105155105560 = 23519378942017
BaseRepresentation
bin110000111101110111…
…0111001001100011000
3101001102102212211122021
41201323232321030120
53210324201334220
6120150234504224
710411561435531
oct1417356711430
9331372784567
10105155105560
114066135221a
1218468295074
139bba83706b
145137979688
152b06acd4aa
hex187bbb9318

105155105560 has 128 divisors (see below), whose sum is σ = 258662808000. Its totient is φ = 38334726144.

The previous prime is 105155105543. The next prime is 105155105591. The reversal of 105155105560 is 65501551501.

It is a super-2 number, since 2×1051551055602 (a number of 23 digits) contains 22 as substring.

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, 2481672 + ... + 2523688.

Almost surely, 2105155105560 is an apocalyptic number.

105155105560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105155105560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129331404000).

105155105560 is an abundant number, since it is smaller than the sum of its proper divisors (153507702440).

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

105155105560 is a wasteful number, since it uses less digits than its factorization.

105155105560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42173 (or 42169 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 105155105560 in words is "one hundred five billion, one hundred fifty-five million, one hundred five thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 19 20 37 38 40 74 76 89 95 148 152 178 185 190 296 356 370 380 445 703 712 740 760 890 1406 1480 1691 1780 2812 3293 3382 3515 3560 5624 6586 6764 7030 8455 13172 13528 14060 16465 16910 26344 28120 32930 33820 42017 62567 65860 67640 84034 125134 131720 168068 210085 250268 312835 336136 420170 500536 625670 798323 840340 1251340 1554629 1596646 1680680 2502680 3109258 3193292 3739513 3991615 6218516 6386584 7479026 7773145 7983230 12437032 14958052 15546290 15966460 18697565 29537951 29916104 31092580 31932920 37395130 59075902 62185160 71050747 74790260 118151804 138361981 142101494 147689755 149580520 236303608 276723962 284202988 295379510 355253735 553447924 568405976 590759020 691809905 710507470 1106895848 1181518040 1383619810 1421014940 2628877639 2767239620 2842029880 5257755278 5534479240 10515510556 13144388195 21031021112 26288776390 52577552780 105155105560