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30830292 = 22324311987
BaseRepresentation
bin111010110011…
…0111011010100
32011000100012200
41311212323110
530343032132
63020444500
7523024143
oct165467324
964010180
1030830292
1116448289
12a3a9730
136505b9c
14414775a
152a8ed7c
hex1d66ed4

30830292 has 36 divisors (see below), whose sum is σ = 78152256. Its totient is φ = 10247760.

The previous prime is 30830291. The next prime is 30830321. The reversal of 30830292 is 29203803.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30830291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14523 + ... + 16509.

It is an arithmetic number, because the mean of its divisors is an integer number (2170896).

Almost surely, 230830292 is an apocalyptic number.

It is an amenable number.

30830292 is an abundant number, since it is smaller than the sum of its proper divisors (47321964).

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

30830292 is a wasteful number, since it uses less digits than its factorization.

30830292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428 (or 2423 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30830292 is about 5552.5032192697. The cubic root of 30830292 is about 313.5637714335.

The spelling of 30830292 in words is "thirty million, eight hundred thirty thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 431 862 1293 1724 1987 2586 3879 3974 5172 5961 7758 7948 11922 15516 17883 23844 35766 71532 856397 1712794 2569191 3425588 5138382 7707573 10276764 15415146 30830292