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30206524 = 2231477173
BaseRepresentation
bin111001100111…
…0101000111100
32002211122120011
41303032220330
530213102044
62555233004
7514515445
oct163165074
962748504
1030206524
1116061677
12a148764
136347caa
1440242cc
1529ba134
hex1ccea3c

30206524 has 48 divisors (see below), whose sum is σ = 57286656. Its totient is φ = 13910400.

The previous prime is 30206509. The next prime is 30206531. The reversal of 30206524 is 42560203.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30206495 and 30206504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413752 + ... + 413824.

It is an arithmetic number, because the mean of its divisors is an integer number (1193472).

Almost surely, 230206524 is an apocalyptic number.

It is an amenable number.

30206524 is a deficient number, since it is larger than the sum of its proper divisors (27080132).

30206524 is a wasteful number, since it uses less digits than its factorization.

30206524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30206524 is about 5496.0462152351. The cubic root of 30206524 is about 311.4346407449.

Adding to 30206524 its reverse (42560203), we get a palindrome (72766727).

The spelling of 30206524 in words is "thirty million, two hundred six thousand, five hundred twenty-four".

Divisors: 1 2 4 31 47 62 71 73 94 124 142 146 188 284 292 1457 2201 2263 2914 3337 3431 4402 4526 5183 5828 6674 6862 8804 9052 10366 13348 13724 20732 103447 106361 160673 206894 212722 243601 321346 413788 425444 487202 642692 974404 7551631 15103262 30206524