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122445353444 = 22202915086909
BaseRepresentation
bin111001000001001001…
…1111101000111100100
3102201001102112102210112
41302002103331013210
54001232002302234
6132130044512152
711563211221511
oct1620223750744
9381042472715
10122445353444
1147a24234387
121b89284b658
13b7149c247b
145cd8010308
1532b99d9ace
hex1c824fd1e4

122445353444 has 12 divisors (see below), whose sum is σ = 214384991100. Its totient is φ = 61192498848.

The previous prime is 122445353431. The next prime is 122445353473. The reversal of 122445353444 is 444353544221.

It can be written as a sum of positive squares in 2 ways, for example, as 114995592100 + 7449761344 = 339110^2 + 86312^2 .

It is a super-2 number, since 2×1224453534442 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7535339 + ... + 7551570.

It is an arithmetic number, because the mean of its divisors is an integer number (17865415925).

Almost surely, 2122445353444 is an apocalyptic number.

It is an amenable number.

122445353444 is a deficient number, since it is larger than the sum of its proper divisors (91939637656).

122445353444 is a wasteful number, since it uses less digits than its factorization.

122445353444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15088942 (or 15088940 counting only the distinct ones).

The product of its digits is 921600, while the sum is 41.

Adding to 122445353444 its reverse (444353544221), we get a palindrome (566798897665).

The spelling of 122445353444 in words is "one hundred twenty-two billion, four hundred forty-five million, three hundred fifty-three thousand, four hundred forty-four".

Divisors: 1 2 4 2029 4058 8116 15086909 30173818 60347636 30611338361 61222676722 122445353444