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30148036 = 227537009
BaseRepresentation
bin111001100000…
…0010111000100
32002201200022221
41303000113010
530204214121
62554102124
7514153102
oct163002704
962650287
1030148036
1116021736
12a11a944
136327499
14400ac72
1529a7b41
hex1cc05c4

30148036 has 6 divisors (see below), whose sum is σ = 52759070. Its totient is φ = 15074016.

The previous prime is 30147989. The next prime is 30148067. The reversal of 30148036 is 63084103.

It can be written as a sum of positive squares in only one way, i.e., 29160000 + 988036 = 5400^2 + 994^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30148036.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3768501 + ... + 3768508.

Almost surely, 230148036 is an apocalyptic number.

It is an amenable number.

30148036 is a deficient number, since it is larger than the sum of its proper divisors (22611034).

30148036 is a wasteful number, since it uses less digits than its factorization.

30148036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7537013 (or 7537011 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 30148036 is about 5490.7227210997. The cubic root of 30148036 is about 311.2335036391.

The spelling of 30148036 in words is "thirty million, one hundred forty-eight thousand, thirty-six".

Divisors: 1 2 4 7537009 15074018 30148036