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354220103 = 1572256179
BaseRepresentation
bin10101000111001…
…111100001000111
3220200112020122002
4111013033201013
51211140020403
655052055515
711530551446
oct2507174107
9820466562
10354220103
11171a47896
129a76459b
1358502cc3
1435088d5d
152116e188
hex151cf847

354220103 has 4 divisors (see below), whose sum is σ = 356476440. Its totient is φ = 351963768.

The previous prime is 354220099. The next prime is 354220117. The reversal of 354220103 is 301022453.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301022453 = 1915843287.

It is a cyclic number.

It is not a de Polignac number, because 354220103 - 22 = 354220099 is a prime.

It is a super-3 number, since 3×3542201033 (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354220133) 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, 1127933 + ... + 1128246.

It is an arithmetic number, because the mean of its divisors is an integer number (89119110).

Almost surely, 2354220103 is an apocalyptic number.

354220103 is a deficient number, since it is larger than the sum of its proper divisors (2256337).

354220103 is a wasteful number, since it uses less digits than its factorization.

354220103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256336.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 354220103 is about 18820.7359845464. The cubic root of 354220103 is about 707.5509770275.

Adding to 354220103 its reverse (301022453), we get a palindrome (655242556).

The spelling of 354220103 in words is "three hundred fifty-four million, two hundred twenty thousand, one hundred three".

Divisors: 1 157 2256179 354220103