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1065120103 = 31281122273
BaseRepresentation
bin111111011111000…
…111000101100111
32202020012201002201
4333133013011213
54140132320403
6253405115331
735252241265
oct7737070547
92666181081
101065120103
114a7261553
12258858b47
1313c88a7a8
14a165d435
156379621d
hex3f7c7167

1065120103 has 8 divisors (see below), whose sum is σ = 1103400576. Its totient is φ = 1027084800.

The previous prime is 1065120079. The next prime is 1065120113. The reversal of 1065120103 is 3010215601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1065120103 - 25 = 1065120071 is a prime.

It is a super-2 number, since 2×10651201032 = 2268961667629461218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065120113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52426 + ... + 69847.

It is an arithmetic number, because the mean of its divisors is an integer number (137925072).

Almost surely, 21065120103 is an apocalyptic number.

1065120103 is a deficient number, since it is larger than the sum of its proper divisors (38280473).

1065120103 is a wasteful number, since it uses less digits than its factorization.

1065120103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122585.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1065120103 is about 32636.1778246167. The cubic root of 1065120103 is about 1021.2518600373.

Adding to 1065120103 its reverse (3010215601), we get a palindrome (4075335704).

The spelling of 1065120103 in words is "one billion, sixty-five million, one hundred twenty thousand, one hundred three".

Divisors: 1 31 281 8711 122273 3790463 34358713 1065120103