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30114941 = 48136257
BaseRepresentation
bin111001011100…
…0010001111101
32002122222221012
41302320101331
530202134231
62553245005
7513654443
oct162702175
962588835
1030114941
1115aa988a
12a103765
1363153bc
143ddcb93
15299ce2b
hex1cb847d

30114941 has 4 divisors (see below), whose sum is σ = 30126012. Its totient is φ = 30103872.

The previous prime is 30114937. The next prime is 30114967. The reversal of 30114941 is 14941103.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14941103 = 27753939.

It can be written as a sum of positive squares in 2 ways, for example, as 27258841 + 2856100 = 5221^2 + 1690^2 .

It is a cyclic number.

It is not a de Polignac number, because 30114941 - 22 = 30114937 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30116941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1685 + ... + 7941.

It is an arithmetic number, because the mean of its divisors is an integer number (7531503).

Almost surely, 230114941 is an apocalyptic number.

It is an amenable number.

30114941 is a deficient number, since it is larger than the sum of its proper divisors (11071).

30114941 is an equidigital number, since it uses as much as digits as its factorization.

30114941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11070.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 30114941 is about 5487.7081737279. The cubic root of 30114941 is about 311.1195764373.

The spelling of 30114941 in words is "thirty million, one hundred fourteen thousand, nine hundred forty-one".

Divisors: 1 4813 6257 30114941