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102245803 = 11171932833
BaseRepresentation
bin1100001100000…
…10010110101011
321010101121212121
412012002112223
5202133331203
614051252111
72351034502
oct606022653
9233347777
10102245803
1152795870
122a2aa037
131824ba9a
14d817839
158e9a0bd
hex61825ab

102245803 has 16 divisors (see below), whose sum is σ = 118755936. Its totient is φ = 86999040.

The previous prime is 102245797. The next prime is 102245807. The reversal of 102245803 is 308542201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102245803 is a prime.

It is a super-2 number, since 2×1022458032 = 20908408462229618, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (102245807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34675 + ... + 37507.

It is an arithmetic number, because the mean of its divisors is an integer number (7422246).

Almost surely, 2102245803 is an apocalyptic number.

102245803 is a deficient number, since it is larger than the sum of its proper divisors (16510133).

102245803 is a wasteful number, since it uses less digits than its factorization.

102245803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 102245803 is about 10111.6666776551. Note that the first 4 decimals coincide. The cubic root of 102245803 is about 467.6078895379.

The spelling of 102245803 in words is "one hundred two million, two hundred forty-five thousand, eight hundred three".

Divisors: 1 11 17 187 193 2123 2833 3281 31163 36091 48161 529771 546769 6014459 9295073 102245803