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30132078 = 2343116791
BaseRepresentation
bin111001011110…
…0011101101110
32002200212102220
41302330131232
530203211303
62553500210
7514055424
oct162743556
962625386
1030132078
1116010749
12a111666
136320142
144005114
1529a3053
hex1cbc76e

30132078 has 16 divisors (see below), whose sum is σ = 61666176. Its totient is φ = 9810360.

The previous prime is 30132061. The next prime is 30132079. The reversal of 30132078 is 87023103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30132079) 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, 58138 + ... + 58653.

It is an arithmetic number, because the mean of its divisors is an integer number (3854136).

Almost surely, 230132078 is an apocalyptic number.

30132078 is an abundant number, since it is smaller than the sum of its proper divisors (31534098).

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

30132078 is a wasteful number, since it uses less digits than its factorization.

30132078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116839.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 30132078 is about 5489.2693502870. The cubic root of 30132078 is about 311.1785797647.

The spelling of 30132078 in words is "thirty million, one hundred thirty-two thousand, seventy-eight".

Divisors: 1 2 3 6 43 86 129 258 116791 233582 350373 700746 5022013 10044026 15066039 30132078