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102045461 = 729502687
BaseRepresentation
bin1100001010100…
…01011100010101
321010000110001112
412011101130111
5202110423321
614043104405
72346241430
oct605213425
9233013045
10102045461
11526692a1
122a212105
13181ab83b
14d7a4817
158e5aa5b
hex6151715

102045461 has 8 divisors (see below), whose sum is σ = 120645120. Its totient is φ = 84451248.

The previous prime is 102045443. The next prime is 102045467. The reversal of 102045461 is 164540201.

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

It is not a de Polignac number, because 102045461 - 214 = 102029077 is a prime.

It is a super-2 number, since 2×1020454612 = 20826552221405042, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102045467) 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, 251141 + ... + 251546.

It is an arithmetic number, because the mean of its divisors is an integer number (15080640).

Almost surely, 2102045461 is an apocalyptic number.

It is an amenable number.

102045461 is a deficient number, since it is larger than the sum of its proper divisors (18599659).

102045461 is an equidigital number, since it uses as much as digits as its factorization.

102045461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502723.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 102045461 is about 10101.7553425135. The cubic root of 102045461 is about 467.3022771452.

Adding to 102045461 its reverse (164540201), we get a palindrome (266585662).

The spelling of 102045461 in words is "one hundred two million, forty-five thousand, four hundred sixty-one".

Divisors: 1 7 29 203 502687 3518809 14577923 102045461