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122244320 = 2551169457
BaseRepresentation
bin1110100100101…
…00110011100000
322112000122200102
413102110303200
5222243304240
620044041532
73013026302
oct722246340
9275018612
10122244320
1163004a70
1234b332a8
131c431623
1412341972
15aaea815
hex7494ce0

122244320 has 48 divisors (see below), whose sum is σ = 315061488. Its totient is φ = 44451840.

The previous prime is 122244299. The next prime is 122244361. The reversal of 122244320 is 23442221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122244292 and 122244301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32969 + ... + 36488.

It is an arithmetic number, because the mean of its divisors is an integer number (6563781).

Almost surely, 2122244320 is an apocalyptic number.

122244320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122244320 is an abundant number, since it is smaller than the sum of its proper divisors (192817168).

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

122244320 is a wasteful number, since it uses less digits than its factorization.

122244320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69483 (or 69475 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 122244320 is about 11056.4153322856. The cubic root of 122244320 is about 496.2984242983.

Adding to 122244320 its reverse (23442221), we get a palindrome (145686541).

It can be divided in two parts, 122 and 244320, that added together give a palindrome (244442).

The spelling of 122244320 in words is "one hundred twenty-two million, two hundred forty-four thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 352 440 880 1760 69457 138914 277828 347285 555656 694570 764027 1111312 1389140 1528054 2222624 2778280 3056108 3820135 5556560 6112216 7640270 11113120 12224432 15280540 24448864 30561080 61122160 122244320