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30503604 = 2232541967
BaseRepresentation
bin111010001011…
…1001010110100
32010101202002010
41310113022310
530302103404
63005444220
7520163535
oct164271264
963352063
1030503604
111624489a
12a270670
136420291
1440a068c
152a28189
hex1d172b4

30503604 has 12 divisors (see below), whose sum is σ = 71175104. Its totient is φ = 10167864.

The previous prime is 30503591. The next prime is 30503609. The reversal of 30503604 is 40630503.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30503609) 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, 1270972 + ... + 1270995.

Almost surely, 230503604 is an apocalyptic number.

It is an amenable number.

30503604 is an abundant number, since it is smaller than the sum of its proper divisors (40671500).

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

30503604 is a wasteful number, since it uses less digits than its factorization.

30503604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541974 (or 2541972 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 30503604 is about 5523.0067897840. The cubic root of 30503604 is about 312.4522943711.

The spelling of 30503604 in words is "thirty million, five hundred three thousand, six hundred four".

Divisors: 1 2 3 4 6 12 2541967 5083934 7625901 10167868 15251802 30503604