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30378246 = 2312374093
BaseRepresentation
bin111001111100…
…0100100000110
32010011101010020
41303320210012
530234100441
63003040010
7516132213
oct163704406
963141106
1030378246
1116169698
12a210006
1363a81c2
14406ab0a
152a00e66
hex1cf8906

30378246 has 16 divisors (see below), whose sum is σ = 60820464. Its totient is φ = 10115424.

The previous prime is 30378211. The next prime is 30378247. The reversal of 30378246 is 64287303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30378247) 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, 5376 + ... + 9468.

It is an arithmetic number, because the mean of its divisors is an integer number (3801279).

Almost surely, 230378246 is an apocalyptic number.

30378246 is an abundant number, since it is smaller than the sum of its proper divisors (30442218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30378246 is a wasteful number, since it uses less digits than its factorization.

30378246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5335.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 30378246 is about 5511.6463964953. The cubic root of 30378246 is about 312.0236873863.

The spelling of 30378246 in words is "thirty million, three hundred seventy-eight thousand, two hundred forty-six".

Divisors: 1 2 3 6 1237 2474 3711 4093 7422 8186 12279 24558 5063041 10126082 15189123 30378246