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105703021 = 383275987
BaseRepresentation
bin1100100110011…
…10011001101101
321100220021021201
412103032121231
5204024444041
614253325501
72422314034
oct623163155
9240807251
10105703021
1154737276
122b496891
1318b8c588
141007771b
15942e631
hex64ce66d

105703021 has 4 divisors (see below), whose sum is σ = 105979392. Its totient is φ = 105426652.

The previous prime is 105703001. The next prime is 105703049. The reversal of 105703021 is 120307501.

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 not a de Polignac number, because 105703021 - 27 = 105702893 is a prime.

It is a super-2 number, since 2×1057030212 = 22346257297052882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105703021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105703001) 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, 137611 + ... + 138376.

It is an arithmetic number, because the mean of its divisors is an integer number (26494848).

Almost surely, 2105703021 is an apocalyptic number.

It is an amenable number.

105703021 is a deficient number, since it is larger than the sum of its proper divisors (276371).

105703021 is an equidigital number, since it uses as much as digits as its factorization.

105703021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276370.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 105703021 is about 10281.1974497137. The cubic root of 105703021 is about 472.8199577892.

The spelling of 105703021 in words is "one hundred five million, seven hundred three thousand, twenty-one".

Divisors: 1 383 275987 105703021