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1225466668 = 221931158657
BaseRepresentation
bin100100100001011…
…0010001100101100
310011101221011020101
41021002302030230
510002204413133
6321334000444
742240203056
oct11102621454
93141834211
101225466668
11579820278
122a24a6124
13166b6cc0a
14b8a7c8d6
15728bb37d
hex490b232c

1225466668 has 12 divisors (see below), whose sum is σ = 2145690792. Its totient is φ = 612412160.

The previous prime is 1225466663. The next prime is 1225466687. The reversal of 1225466668 is 8666645221.

It is not an unprimeable number, because it can be changed into a prime (1225466663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71605 + ... + 87052.

It is an arithmetic number, because the mean of its divisors is an integer number (178807566).

Almost surely, 21225466668 is an apocalyptic number.

It is an amenable number.

1225466668 is a deficient number, since it is larger than the sum of its proper divisors (920224124).

1225466668 is a wasteful number, since it uses less digits than its factorization.

1225466668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160592 (or 160590 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The square root of 1225466668 is about 35006.6660509109. Note that the first 3 decimals coincide. The cubic root of 1225466668 is about 1070.1233351294.

The spelling of 1225466668 in words is "one billion, two hundred twenty-five million, four hundred sixty-six thousand, six hundred sixty-eight".

Divisors: 1 2 4 1931 3862 7724 158657 317314 634628 306366667 612733334 1225466668