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30154101 = 310051367
BaseRepresentation
bin111001100000…
…1110101110101
32002201222122120
41303001311311
530204412401
62554150153
7514206555
oct163016565
962658576
1030154101
111602624a
12a122359
13632a183
14400d165
1529a9836
hex1cc1d75

30154101 has 4 divisors (see below), whose sum is σ = 40205472. Its totient is φ = 20102732.

The previous prime is 30154097. The next prime is 30154123. The reversal of 30154101 is 10145103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10145103 = 33381701.

It is a cyclic number.

It is not a de Polignac number, because 30154101 - 22 = 30154097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30154151) 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, 5025681 + ... + 5025686.

It is an arithmetic number, because the mean of its divisors is an integer number (10051368).

Almost surely, 230154101 is an apocalyptic number.

It is an amenable number.

30154101 is a deficient number, since it is larger than the sum of its proper divisors (10051371).

30154101 is a wasteful number, since it uses less digits than its factorization.

30154101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10051370.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 30154101 is about 5491.2749885614. The cubic root of 30154101 is about 311.2543729325.

Adding to 30154101 its reverse (10145103), we get a palindrome (40299204).

The spelling of 30154101 in words is "thirty million, one hundred fifty-four thousand, one hundred one".

Divisors: 1 3 10051367 30154101