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11784230040 = 23351129307843
BaseRepresentation
bin10101111100110010…
…10001010010011000
31010102021002220121110
422332121101102120
5143113230330130
65225200540320
7565011205542
oct127631212230
933367086543
1011784230040
114aa79884a0
12234a6216a0
13115a5485ab
147db0d2692
1548e84dab0
hex2be651498

11784230040 has 128 divisors (see below), whose sum is σ = 39896582400. Its totient is φ = 2758264320.

The previous prime is 11784230033. The next prime is 11784230083. The reversal of 11784230040 is 4003248711.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 115642 + ... + 192201.

It is an arithmetic number, because the mean of its divisors is an integer number (311692050).

Almost surely, 211784230040 is an apocalyptic number.

11784230040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11784230040 is an abundant number, since it is smaller than the sum of its proper divisors (28112352360).

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

11784230040 is a wasteful number, since it uses less digits than its factorization.

11784230040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307897 (or 307893 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

Adding to 11784230040 its reverse (4003248711), we get a palindrome (15787478751).

The spelling of 11784230040 in words is "eleven billion, seven hundred eighty-four million, two hundred thirty thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 29 30 33 40 44 55 58 60 66 87 88 110 116 120 132 145 165 174 220 232 264 290 319 330 348 435 440 580 638 660 696 870 957 1160 1276 1320 1595 1740 1914 2552 3190 3480 3828 4785 6380 7656 9570 12760 19140 38280 307843 615686 923529 1231372 1539215 1847058 2462744 3078430 3386273 3694116 4617645 6156860 6772546 7388232 8927447 9235290 10158819 12313720 13545092 16931365 17854894 18470580 20317638 26782341 27090184 33862730 35709788 36941160 40635276 44637235 50794095 53564682 67725460 71419576 81270552 89274470 98201917 101588190 107129364 133911705 135450920 178548940 196403834 203176380 214258728 267823410 294605751 357097880 392807668 406352760 491009585 535646820 589211502 785615336 982019170 1071293640 1178423004 1473028755 1964038340 2356846008 2946057510 3928076680 5892115020 11784230040