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121420662 = 23112816547
BaseRepresentation
bin1110011110010…
…11101101110110
322110110210211120
413033023231312
5222040430122
620014244410
73003026046
oct717135566
9273423746
10121420662
11625a2160
12347b6706
131c20375c
14121a9726
15a9d675c
hex73cbb76

121420662 has 32 divisors (see below), whose sum is σ = 265901184. Its totient is φ = 36657600.

The previous prime is 121420661. The next prime is 121420667. The reversal of 121420662 is 266024121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121420661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15273 + ... + 21819.

It is an arithmetic number, because the mean of its divisors is an integer number (8309412).

Almost surely, 2121420662 is an apocalyptic number.

121420662 is an abundant number, since it is smaller than the sum of its proper divisors (144480522).

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

121420662 is a wasteful number, since it uses less digits than its factorization.

121420662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6844.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 121420662 is about 11019.1044100689. The cubic root of 121420662 is about 495.1812579739.

Adding to 121420662 its reverse (266024121), we get a palindrome (387444783).

The spelling of 121420662 in words is "one hundred twenty-one million, four hundred twenty thousand, six hundred sixty-two".

Divisors: 1 2 3 6 11 22 33 66 281 562 843 1686 3091 6182 6547 9273 13094 18546 19641 39282 72017 144034 216051 432102 1839707 3679414 5519121 11038242 20236777 40473554 60710331 121420662