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103054649 = 239431191
BaseRepresentation
bin1100010010001…
…11110100111001
321011220201101212
412021013310321
5202340222044
614120452505
72360643605
oct611076471
9234821355
10103054649
1153198535
122a61a135
1318472ca9
14d988505
1590a9a9e
hex6247d39

103054649 has 4 divisors (see below), whose sum is σ = 103486080. Its totient is φ = 102623220.

The previous prime is 103054621. The next prime is 103054667. The reversal of 103054649 is 946450301.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-103054649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103054619) 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, 215357 + ... + 215834.

It is an arithmetic number, because the mean of its divisors is an integer number (25871520).

Almost surely, 2103054649 is an apocalyptic number.

It is an amenable number.

103054649 is a deficient number, since it is larger than the sum of its proper divisors (431431).

103054649 is an equidigital number, since it uses as much as digits as its factorization.

103054649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431430.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 103054649 is about 10151.5835710494. The cubic root of 103054649 is about 468.8377029616.

The spelling of 103054649 in words is "one hundred three million, fifty-four thousand, six hundred forty-nine".

Divisors: 1 239 431191 103054649