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106551457 = 731459609
BaseRepresentation
bin1100101100111…
…01100010100001
321102111101010021
412112131202201
5204234121312
614323433441
72432446435
oct626354241
9242441107
10106551457
1155166761
122b825881
13190c87cc
14102189c5
15954ac07
hex659d8a1

106551457 has 4 divisors (see below), whose sum is σ = 108011140. Its totient is φ = 105091776.

The previous prime is 106551443. The next prime is 106551503. The reversal of 106551457 is 754155601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57775201 + 48776256 = 7601^2 + 6984^2 .

It is a cyclic number.

It is not a de Polignac number, because 106551457 - 215 = 106518689 is a prime.

It is a super-2 number, since 2×1065514572 = 22706425977645698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106551437) 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, 729732 + ... + 729877.

It is an arithmetic number, because the mean of its divisors is an integer number (27002785).

Almost surely, 2106551457 is an apocalyptic number.

It is an amenable number.

106551457 is a deficient number, since it is larger than the sum of its proper divisors (1459683).

106551457 is an equidigital number, since it uses as much as digits as its factorization.

106551457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459682.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 106551457 is about 10322.3765189999. The cubic root of 106551457 is about 474.0816338833.

The spelling of 106551457 in words is "one hundred six million, five hundred fifty-one thousand, four hundred fifty-seven".

Divisors: 1 73 1459609 106551457