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22200285040 = 2451716323739
BaseRepresentation
bin10100101011001111…
…010111011101110000
32010022011202022220021
4110223033113131300
5330431233110130
614110525053224
71414100211043
oct245317273560
963264668807
1022200285040
11946253380a
1243769b7214
13212a4a8c4b
1411085d8c5a
1589dee237a
hex52b3d7770

22200285040 has 40 divisors (see below), whose sum is σ = 54651881520. Its totient is φ = 8357753856.

The previous prime is 22200285017. The next prime is 22200285049. The reversal of 22200285040 is 4058200222.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 22200284996 and 22200285014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200285049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8160510 + ... + 8163229.

It is an arithmetic number, because the mean of its divisors is an integer number (1366297038).

Almost surely, 222200285040 is an apocalyptic number.

22200285040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22200285040 is an abundant number, since it is smaller than the sum of its proper divisors (32451596480).

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

22200285040 is a wasteful number, since it uses less digits than its factorization.

22200285040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16323769 (or 16323763 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 22200285040 its reverse (4058200222), we get a palindrome (26258485262).

The spelling of 22200285040 in words is "twenty-two billion, two hundred million, two hundred eighty-five thousand, forty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 680 1360 16323739 32647478 65294956 81618695 130589912 163237390 261179824 277503563 326474780 555007126 652949560 1110014252 1305899120 1387517815 2220028504 2775035630 4440057008 5550071260 11100142520 22200285040