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122213132 = 22174717489
BaseRepresentation
bin1110100100011…
…01001100001100
322111222001220022
413102031030030
5222241310012
620043241312
73012536336
oct722151414
9274861808
10122213132
1162a93598
1234b19238
131c420382
1412334456
15aae1472
hex748d30c

122213132 has 12 divisors (see below), whose sum is σ = 214007640. Its totient is φ = 61068096.

The previous prime is 122213123. The next prime is 122213173. The reversal of 122213132 is 231312221.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 122213132.

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, 1757 + ... + 15732.

It is an arithmetic number, because the mean of its divisors is an integer number (17833970).

Almost surely, 2122213132 is an apocalyptic number.

It is an amenable number.

122213132 is a deficient number, since it is larger than the sum of its proper divisors (91794508).

122213132 is a wasteful number, since it uses less digits than its factorization.

122213132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19240 (or 19238 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 122213132 is about 11055.0048394381. The cubic root of 122213132 is about 496.2562140978.

Adding to 122213132 its reverse (231312221), we get a palindrome (353525353).

The spelling of 122213132 in words is "one hundred twenty-two million, two hundred thirteen thousand, one hundred thirty-two".

Divisors: 1 2 4 1747 3494 6988 17489 34978 69956 30553283 61106566 122213132