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415075440 = 243513173769
BaseRepresentation
bin11000101111011…
…000110001110000
31001221001000110110
4120233120301300
51322224403230
6105104301320
713200040323
oct3057306160
91057030413
10415075440
111a333235a
12b7011840
1367cbc390
143d1aa7ba
15266904b0
hex18bd8c70

415075440 has 160 divisors (see below), whose sum is σ = 1395535680. Its totient is φ = 101449728.

The previous prime is 415075393. The next prime is 415075459. The reversal of 415075440 is 44570514.

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

It is a junction number, because it is equal to n+sod(n) for n = 415075398 and 415075407.

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, 539376 + ... + 540144.

It is an arithmetic number, because the mean of its divisors is an integer number (8722098).

Almost surely, 2415075440 is an apocalyptic number.

415075440 is a gapful number since it is divisible by the number (40) 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 415075440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697767840).

415075440 is an abundant number, since it is smaller than the sum of its proper divisors (980460240).

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

415075440 is a wasteful number, since it uses less digits than its factorization.

415075440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 415075440 is about 20373.4003053000. The cubic root of 415075440 is about 745.9487874146.

The spelling of 415075440 in words is "four hundred fifteen million, seventy-five thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 173 195 208 240 260 312 346 390 519 520 624 692 769 780 865 1038 1040 1384 1538 1560 1730 2076 2249 2307 2595 2768 3076 3120 3460 3845 4152 4498 4614 5190 6152 6747 6920 7690 8304 8996 9228 9997 10380 11245 11535 12304 13494 13840 15380 17992 18456 19994 20760 22490 23070 26988 29991 30760 33735 35984 36912 39988 41520 44980 46140 49985 53976 59982 61520 67470 79976 89960 92280 99970 107952 119964 133037 134940 149955 159952 179920 184560 199940 239928 266074 269880 299910 399111 399880 479856 532148 539760 599820 665185 798222 799760 1064296 1199640 1330370 1596444 1729481 1995555 2128592 2399280 2660740 3192888 3458962 3991110 5188443 5321480 6385776 6917924 7982220 8647405 10376886 10642960 13835848 15964440 17294810 20753772 25942215 27671696 31928880 34589620 41507544 51884430 69179240 83015088 103768860 138358480 207537720 415075440