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30169030 = 254173583
BaseRepresentation
bin111001100010…
…1011111000110
32002202202010111
41303011133012
530210402110
62554343234
7514301233
oct163053706
962682114
1030169030
1116036491
12a12ab1a
136333bc8
14401478a
1529ade8a
hex1cc57c6

30169030 has 16 divisors (see below), whose sum is σ = 55629504. Its totient is φ = 11773120.

The previous prime is 30168967. The next prime is 30169039. The reversal of 30169030 is 3096103.

It is a super-2 number, since 2×301690302 = 1820340742281800, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 30168992 and 30169010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30169039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36382 + ... + 37201.

It is an arithmetic number, because the mean of its divisors is an integer number (3476844).

Almost surely, 230169030 is an apocalyptic number.

30169030 is a deficient number, since it is larger than the sum of its proper divisors (25460474).

30169030 is a wasteful number, since it uses less digits than its factorization.

30169030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73631.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 30169030 is about 5492.6341585800. The cubic root of 30169030 is about 311.3057307882.

The spelling of 30169030 in words is "thirty million, one hundred sixty-nine thousand, thirty".

Divisors: 1 2 5 10 41 82 205 410 73583 147166 367915 735830 3016903 6033806 15084515 30169030