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105381002 = 252690501
BaseRepresentation
bin1100100011111…
…11110010001010
321100021220120002
412101333302022
5203434143002
614242403002
72416503146
oct621776212
9240256502
10105381002
1154537341
122b360462
1318aa8b2c
14ddd2226
1593b9002
hex647fc8a

105381002 has 4 divisors (see below), whose sum is σ = 158071506. Its totient is φ = 52690500.

The previous prime is 105380999. The next prime is 105381037. The reversal of 105381002 is 200183501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200183501 = 728597643.

It can be written as a sum of positive squares in only one way, i.e., 66080641 + 39300361 = 8129^2 + 6269^2 .

It is a super-2 number, since 2×1053810022 = 22210311165048008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26345249 + ... + 26345252.

Almost surely, 2105381002 is an apocalyptic number.

105381002 is a deficient number, since it is larger than the sum of its proper divisors (52690504).

105381002 is an equidigital number, since it uses as much as digits as its factorization.

105381002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52690503.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 105381002 is about 10265.5249256918. The cubic root of 105381002 is about 472.3393285532.

The spelling of 105381002 in words is "one hundred five million, three hundred eighty-one thousand, two".

Divisors: 1 2 52690501 105381002