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30475541 is a prime number
BaseRepresentation
bin111010001000…
…0010100010101
32010100022120202
41310100110111
530300204131
63005110245
7520015655
oct164202425
963308522
1030475541
11162257a8
12a258385
136410585
144094365
152a1ebcb
hex1d10515

30475541 has 2 divisors, whose sum is σ = 30475542. Its totient is φ = 30475540.

The previous prime is 30475499. The next prime is 30475547. The reversal of 30475541 is 14557403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16443025 + 14032516 = 4055^2 + 3746^2 .

It is a cyclic number.

It is not a de Polignac number, because 30475541 - 218 = 30213397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30475547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15237770 + 15237771.

It is an arithmetic number, because the mean of its divisors is an integer number (15237771).

Almost surely, 230475541 is an apocalyptic number.

It is an amenable number.

30475541 is a deficient number, since it is larger than the sum of its proper divisors (1).

30475541 is an equidigital number, since it uses as much as digits as its factorization.

30475541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 30475541 is about 5520.4656506494. The cubic root of 30475541 is about 312.3564473465.

The spelling of 30475541 in words is "thirty million, four hundred seventy-five thousand, five hundred forty-one".