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30269236 = 227567309
BaseRepresentation
bin111001101110…
…1111100110100
32002221211120211
41303131330310
530222103421
63000435204
7515166334
oct163357464
962854524
1030269236
11160a47a8
12a178b04
13636a6ba
14403d0c4
1529cd9e1
hex1cddf34

30269236 has 6 divisors (see below), whose sum is σ = 52971170. Its totient is φ = 15134616.

The previous prime is 30269233. The next prime is 30269249. The reversal of 30269236 is 63296203.

It can be written as a sum of positive squares in only one way, i.e., 21566736 + 8702500 = 4644^2 + 2950^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30269198 and 30269207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30269233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3783651 + ... + 3783658.

Almost surely, 230269236 is an apocalyptic number.

It is an amenable number.

30269236 is a deficient number, since it is larger than the sum of its proper divisors (22701934).

30269236 is a wasteful number, since it uses less digits than its factorization.

30269236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7567313 (or 7567311 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 30269236 is about 5501.7484493568. The cubic root of 30269236 is about 311.6500157283.

The spelling of 30269236 in words is "thirty million, two hundred sixty-nine thousand, two hundred thirty-six".

Divisors: 1 2 4 7567309 15134618 30269236