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122022320 = 24571931129
BaseRepresentation
bin1110100010111…
…10100110110000
322111121101011012
413101132212300
5222214203240
620035210052
73011113130
oct721364660
9274541135
10122022320
11629731a2
1234a46928
131c384574
14122c4ac0
15aaa4b65
hex745e9b0

122022320 has 80 divisors (see below), whose sum is σ = 326199360. Its totient is φ = 41582592.

The previous prime is 122022319. The next prime is 122022353. The reversal of 122022320 is 23220221.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 122022295 and 122022304.

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, 107516 + ... + 108644.

It is an arithmetic number, because the mean of its divisors is an integer number (4077492).

Almost surely, 2122022320 is an apocalyptic number.

122022320 is a gapful number since it is divisible by the number (10) 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 122022320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163099680).

122022320 is an abundant number, since it is smaller than the sum of its proper divisors (204177040).

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

122022320 is a wasteful number, since it uses less digits than its factorization.

122022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 1336 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 122022320 is about 11046.3713499049. The cubic root of 122022320 is about 495.9978104308.

Adding to 122022320 its reverse (23220221), we get a palindrome (145242541).

The spelling of 122022320 in words is "one hundred twenty-two million, twenty-two thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 193 280 386 560 772 965 1129 1351 1544 1930 2258 2702 3088 3860 4516 5404 5645 6755 7720 7903 9032 10808 11290 13510 15440 15806 18064 21616 22580 27020 31612 39515 45160 54040 63224 79030 90320 108080 126448 158060 217897 316120 435794 632240 871588 1089485 1525279 1743176 2178970 3050558 3486352 4357940 6101116 7626395 8715880 12202232 15252790 17431760 24404464 30505580 61011160 122022320