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30226556 = 227556639
BaseRepresentation
bin111001101001…
…1100001111100
32002212200001002
41303103201330
530214222211
62555505432
7514631033
oct163234174
962780032
1030226556
1116075728
12a158278
136354149
14402b71a
1529c103b
hex1cd387c

30226556 has 6 divisors (see below), whose sum is σ = 52896480. Its totient is φ = 15113276.

The previous prime is 30226529. The next prime is 30226571. The reversal of 30226556 is 65562203.

It is a happy number.

It is a super-2 number, since 2×302265562 = 1827289375242272, which contains 22 as substring.

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, 3778316 + ... + 3778323.

It is an arithmetic number, because the mean of its divisors is an integer number (8816080).

Almost surely, 230226556 is an apocalyptic number.

It is an amenable number.

30226556 is a deficient number, since it is larger than the sum of its proper divisors (22669924).

30226556 is a wasteful number, since it uses less digits than its factorization.

30226556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7556643 (or 7556641 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 30226556 is about 5497.8683141741. The cubic root of 30226556 is about 311.5034700276.

Adding to 30226556 its reverse (65562203), we get a palindrome (95788759).

The spelling of 30226556 in words is "thirty million, two hundred twenty-six thousand, five hundred fifty-six".

Divisors: 1 2 4 7556639 15113278 30226556