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30552705 = 325678949
BaseRepresentation
bin111010010001…
…1001010000001
32010111020102200
41310203022001
530310141310
63010503413
7520456641
oct164431201
963436380
1030552705
1116278777
12a294b69
136439731
1440b4521
152a379c0
hex1d23281

30552705 has 12 divisors (see below), whose sum is σ = 52958100. Its totient is φ = 16294752.

The previous prime is 30552659. The next prime is 30552707. The reversal of 30552705 is 50725503.

It can be written as a sum of positive squares in 2 ways, for example, as 4297329 + 26255376 = 2073^2 + 5124^2 .

It is not a de Polignac number, because 30552705 - 210 = 30551681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30552707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339430 + ... + 339519.

It is an arithmetic number, because the mean of its divisors is an integer number (4413175).

Almost surely, 230552705 is an apocalyptic number.

It is an amenable number.

30552705 is a deficient number, since it is larger than the sum of its proper divisors (22405395).

30552705 is a wasteful number, since it uses less digits than its factorization.

30552705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678960 (or 678957 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 30552705 is about 5527.4501354603. The cubic root of 30552705 is about 312.6198537597.

The spelling of 30552705 in words is "thirty million, five hundred fifty-two thousand, seven hundred five".

Divisors: 1 3 5 9 15 45 678949 2036847 3394745 6110541 10184235 30552705