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107215451 = 7411792087
BaseRepresentation
bin1100110001111…
…11101001011011
321110202002221122
412120333221123
5204421343301
614345555455
72441213330
oct630775133
9243662848
10107215451
115557a612
122baa5b8b
131929bac5
141034c987
15962c81b
hex663fa5b

107215451 has 16 divisors (see below), whose sum is σ = 126282240. Its totient is φ = 89113920.

The previous prime is 107215441. The next prime is 107215463. The reversal of 107215451 is 154512701.

It is a de Polignac number, because none of the positive numbers 2k-107215451 is a prime.

It is a super-2 number, since 2×1072154512 = 22990305866266802, 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 107215451.

It is not an unprimeable number, because it can be changed into a prime (107215421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50330 + ... + 52416.

It is an arithmetic number, because the mean of its divisors is an integer number (7892640).

Almost surely, 2107215451 is an apocalyptic number.

107215451 is a deficient number, since it is larger than the sum of its proper divisors (19066789).

107215451 is a wasteful number, since it uses less digits than its factorization.

107215451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 107215451 is about 10354.4894128103. The cubic root of 107215451 is about 475.0643694853.

The spelling of 107215451 in words is "one hundred seven million, two hundred fifteen thousand, four hundred fifty-one".

Divisors: 1 7 41 179 287 1253 2087 7339 14609 51373 85567 373573 598969 2615011 15316493 107215451