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245411040 = 2535773039
BaseRepresentation
bin11101010000010…
…10110011100000
3122002210011122210
432220022303200
51000311123130
640204002120
76036650040
oct1650126340
9562704583
10245411040
11116589a46
126a230340
133bac6a44
1424843720
15168295b0
hexea0ace0

245411040 has 96 divisors (see below), whose sum is σ = 883491840. Its totient is φ = 56093184.

The previous prime is 245411039. The next prime is 245411071. The reversal of 245411040 is 40114542.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 245410998 and 245411016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33160 + ... + 39879.

It is an arithmetic number, because the mean of its divisors is an integer number (9203040).

Almost surely, 2245411040 is an apocalyptic number.

245411040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245411040 is an abundant number, since it is smaller than the sum of its proper divisors (638080800).

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

245411040 is a wasteful number, since it uses less digits than its factorization.

245411040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73064 (or 73056 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 245411040 is about 15665.6005311000. The cubic root of 245411040 is about 626.0822124909.

Adding to 245411040 its reverse (40114542), we get a palindrome (285525582).

The spelling of 245411040 in words is "two hundred forty-five million, four hundred eleven thousand, forty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 70 80 84 96 105 112 120 140 160 168 210 224 240 280 336 420 480 560 672 840 1120 1680 3360 73039 146078 219117 292156 365195 438234 511273 584312 730390 876468 1022546 1095585 1168624 1460780 1533819 1752936 2045092 2191170 2337248 2556365 2921560 3067638 3505872 4090184 4382340 5112730 5843120 6135276 7011744 7669095 8180368 8764680 10225460 11686240 12270552 15338190 16360736 17529360 20450920 24541104 30676380 35058720 40901840 49082208 61352760 81803680 122705520 245411040