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43139003180 = 225721316991993
BaseRepresentation
bin101000001011010010…
…001111001100101100
311010100102122102100112
4220023102033030230
51201322041100210
631452350315152
73055011322400
oct501322171454
9133312572315
1043139003180
111732792a649
12843b1b8ab8
1340b64b54b0
142133439100
1511c7386d05
hexa0b48f32c

43139003180 has 144 divisors (see below), whose sum is σ = 113612536800. Its totient is φ = 13637901312.

The previous prime is 43139003179. The next prime is 43139003183. The reversal of 43139003180 is 8130093134.

It is a happy number.

It is a super-2 number, since 2×431390031802 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43139003183) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21644264 + ... + 21646256.

It is an arithmetic number, because the mean of its divisors is an integer number (788975950).

Almost surely, 243139003180 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 43139003180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56806268400).

43139003180 is an abundant number, since it is smaller than the sum of its proper divisors (70473533620).

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

43139003180 is a wasteful number, since it uses less digits than its factorization.

43139003180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3728 (or 3719 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 43139003180 in words is "forty-three billion, one hundred thirty-nine million, three thousand, one hundred eighty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 49 52 65 70 91 98 130 140 182 196 245 260 364 455 490 637 910 980 1274 1699 1820 1993 2548 3185 3398 3986 6370 6796 7972 8495 9965 11893 12740 13951 16990 19930 22087 23786 25909 27902 33980 39860 44174 47572 51818 55804 59465 69755 83251 88348 97657 103636 110435 118930 129545 139510 154609 166502 181363 195314 220870 237860 259090 279020 309218 333004 362726 390628 416255 441740 488285 518180 618436 725452 773045 832510 906815 976570 1082263 1269541 1546090 1665020 1813630 1953140 2164526 2539082 3092180 3386107 3627260 4329052 5078164 5411315 6347705 6772214 10822630 12695410 13544428 16930535 21645260 23702749 25390820 33861070 44019391 47405498 67722140 88038782 94810996 118513745 165919243 176077564 220096955 237027490 308135737 331838486 440193910 474054980 616271474 663676972 829596215 880387820 1232542948 1540678685 1659192430 2156950159 3081357370 3318384860 4313900318 6162714740 8627800636 10784750795 21569501590 43139003180