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122230144 = 27954923
BaseRepresentation
bin1110100100100…
…01010110000000
322111222221020101
413102101112000
5222242331034
620043452144
73012640051
oct722212600
9274887211
10122230144
1162aa5353
1234b27054
131c42803a
141233a728
15aae6514
hex7491580

122230144 has 16 divisors (see below), whose sum is σ = 243505620. Its totient is φ = 61115008.

The previous prime is 122230111. The next prime is 122230159. The reversal of 122230144 is 441032221.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 477334 + ... + 477589.

Almost surely, 2122230144 is an apocalyptic number.

It is an amenable number.

122230144 is a deficient number, since it is larger than the sum of its proper divisors (121275476).

122230144 is an frugal number, since it uses more digits than its factorization.

122230144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954937 (or 954925 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 122230144 is about 11055.7742379265. The cubic root of 122230144 is about 496.2792392258.

Adding to 122230144 its reverse (441032221), we get a palindrome (563262365).

The spelling of 122230144 in words is "one hundred twenty-two million, two hundred thirty thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 32 64 128 954923 1909846 3819692 7639384 15278768 30557536 61115072 122230144