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105247454 = 21321013083
BaseRepresentation
bin1100100010111…
…11001011011110
321100001010100212
412101133023132
5203420404304
614235452422
72415405614
oct621371336
9240033325
10105247454
1154455a74
122b2b7112
1318a60100
14dd996b4
15938e66e
hex645f2de

105247454 has 24 divisors (see below), whose sum is σ = 172697832. Its totient is φ = 48079200.

The previous prime is 105247421. The next prime is 105247463. The reversal of 105247454 is 454742501.

It is a super-2 number, since 2×1052474542 = 22154053146964232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105247454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32597 + ... + 35679.

It is an arithmetic number, because the mean of its divisors is an integer number (7195743).

Almost surely, 2105247454 is an apocalyptic number.

105247454 is a deficient number, since it is larger than the sum of its proper divisors (67450378).

105247454 is a wasteful number, since it uses less digits than its factorization.

105247454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212 (or 3199 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 32.

The square root of 105247454 is about 10259.0181791437. The cubic root of 105247454 is about 472.1397143374.

Adding to 105247454 its reverse (454742501), we get a palindrome (559989955).

The spelling of 105247454 in words is "one hundred five million, two hundred forty-seven thousand, four hundred fifty-four".

Divisors: 1 2 13 26 101 169 202 338 1313 2626 3083 6166 17069 34138 40079 80158 311383 521027 622766 1042054 4047979 8095958 52623727 105247454