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122204320 = 2557109111
BaseRepresentation
bin1110100100010…
…11000010100000
322111221121210221
413102023002200
5222241014240
620043132424
73012501550
oct722130240
9274847727
10122204320
1162a87a07
1234b14114
131c419364
1412331160
15aadda4a
hex748b0a0

122204320 has 48 divisors (see below), whose sum is σ = 329954688. Its totient is φ = 41898240.

The previous prime is 122204317. The next prime is 122204321. The reversal of 122204320 is 23402221.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 122204294 and 122204303.

It is not an unprimeable number, because it can be changed into a prime (122204321) 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, 53436 + ... + 55675.

It is an arithmetic number, because the mean of its divisors is an integer number (6874056).

Almost surely, 2122204320 is an apocalyptic number.

122204320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122204320 is an abundant number, since it is smaller than the sum of its proper divisors (207750368).

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

122204320 is a wasteful number, since it uses less digits than its factorization.

122204320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109133 (or 109125 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 122204320 is about 11054.6062797370. The cubic root of 122204320 is about 496.2442865338.

Adding to 122204320 its reverse (23402221), we get a palindrome (145606541).

The spelling of 122204320 in words is "one hundred twenty-two million, two hundred four thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 560 1120 109111 218222 436444 545555 763777 872888 1091110 1527554 1745776 2182220 3055108 3491552 3818885 4364440 6110216 7637770 8728880 12220432 15275540 17457760 24440864 30551080 61102160 122204320