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30133207 = 132376179
BaseRepresentation
bin111001011110…
…0101111010111
32002200220222201
41302330233113
530203230312
62553505331
7514061626
oct162745727
962626881
1030133207
1116011585
12a112247
136320800
1440056bd
1529a3557
hex1cbcbd7

30133207 has 24 divisors (see below), whose sum is σ = 34491840. Its totient is φ = 26282880.

The previous prime is 30133199. The next prime is 30133217. The reversal of 30133207 is 70233103.

It is not a de Polignac number, because 30133207 - 23 = 30133199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30133217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 381394 + ... + 381472.

It is an arithmetic number, because the mean of its divisors is an integer number (1437160).

Almost surely, 230133207 is an apocalyptic number.

30133207 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

30133207 is a deficient number, since it is larger than the sum of its proper divisors (4358633).

30133207 is a wasteful number, since it uses less digits than its factorization.

30133207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 30133207 is about 5489.3721863251. The cubic root of 30133207 is about 311.1824661680.

The spelling of 30133207 in words is "thirty million, one hundred thirty-three thousand, two hundred seven".

Divisors: 1 13 37 61 79 169 481 793 1027 2257 2923 4819 6253 10309 13351 29341 37999 62647 178303 381433 493987 814411 2317939 30133207