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103054021 = 714722003
BaseRepresentation
bin1100010010001…
…11101011000101
321011220200112121
412021013223011
5202340212041
614120445541
72360642020
oct611075305
9234820477
10103054021
1153198014
122a6198b1
1318472915
14d9881b7
1590a97d1
hex6247ac5

103054021 has 4 divisors (see below), whose sum is σ = 117776032. Its totient is φ = 88332012.

The previous prime is 103054019. The next prime is 103054057. The reversal of 103054021 is 120450301.

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: 120450301 = 1095710993.

It is a cyclic number.

It is not a de Polignac number, because 103054021 - 21 = 103054019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103053986 and 103054004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103054121) 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, 7360995 + ... + 7361008.

It is an arithmetic number, because the mean of its divisors is an integer number (29444008).

Almost surely, 2103054021 is an apocalyptic number.

It is an amenable number.

103054021 is a deficient number, since it is larger than the sum of its proper divisors (14722011).

103054021 is an equidigital number, since it uses as much as digits as its factorization.

103054021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14722010.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 103054021 is about 10151.5526398675. The cubic root of 103054021 is about 468.8367506168.

The spelling of 103054021 in words is "one hundred three million, fifty-four thousand, twenty-one".

Divisors: 1 7 14722003 103054021