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30501934 = 219517817
BaseRepresentation
bin111010001011…
…0110000101110
32010101122210021
41310112300232
530302030214
63005432354
7520155631
oct164266056
963348707
1030501934
1116243611
12a26b6ba
13641c5a8
14409dc18
152a27924
hex1d16c2e

30501934 has 8 divisors (see below), whose sum is σ = 45782208. Its totient is φ = 15241200.

The previous prime is 30501931. The next prime is 30501953. The reversal of 30501934 is 43910503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30501899 and 30501908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30501931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7 + ... + 7810.

It is an arithmetic number, because the mean of its divisors is an integer number (5722776).

Almost surely, 230501934 is an apocalyptic number.

30501934 is a deficient number, since it is larger than the sum of its proper divisors (15280274).

30501934 is a wasteful number, since it uses less digits than its factorization.

30501934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9770.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 30501934 is about 5522.8556019509. The cubic root of 30501934 is about 312.4465922595.

The spelling of 30501934 in words is "thirty million, five hundred one thousand, nine hundred thirty-four".

Divisors: 1 2 1951 3902 7817 15634 15250967 30501934