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30545552 = 244334409
BaseRepresentation
bin111010010000…
…1011010010000
32010110212121202
41310201122100
530304424202
63010410332
7520430042
oct164413220
963425552
1030545552
1116273364
12a2909a8
1364363bb
1440b1a92
152a35802
hex1d21690

30545552 has 20 divisors (see below), whose sum is σ = 59332140. Its totient is φ = 15234048.

The previous prime is 30545551. The next prime is 30545569. The reversal of 30545552 is 25554503.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2835856 + 27709696 = 1684^2 + 5264^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30545551) 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, 4724 + ... + 9132.

It is an arithmetic number, because the mean of its divisors is an integer number (2966607).

Almost surely, 230545552 is an apocalyptic number.

It is an amenable number.

30545552 is a deficient number, since it is larger than the sum of its proper divisors (28786588).

30545552 is a wasteful number, since it uses less digits than its factorization.

30545552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850 (or 4844 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 30545552 is about 5526.8030542077. The cubic root of 30545552 is about 312.5954549997.

The spelling of 30545552 in words is "thirty million, five hundred forty-five thousand, five hundred fifty-two".

Divisors: 1 2 4 8 16 433 866 1732 3464 4409 6928 8818 17636 35272 70544 1909097 3818194 7636388 15272776 30545552