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103081645 = 5203910111
BaseRepresentation
bin1100010010011…
…10011010101101
321011222002102201
412021032122231
5202342103040
614121221501
72361115402
oct611163255
9234862381
10103081645
1153206847
122a631891
1318482374
14d9942a9
1590b2a9a
hex624e6ad

103081645 has 8 divisors (see below), whose sum is σ = 123770880. Its totient is φ = 82416720.

The previous prime is 103081639. The next prime is 103081739. The reversal of 103081645 is 546180301.

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

It is not a de Polignac number, because 103081645 - 23 = 103081637 is a prime.

It is a super-3 number, since 3×1030816453 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5140 + ... + 15250.

It is an arithmetic number, because the mean of its divisors is an integer number (15471360).

Almost surely, 2103081645 is an apocalyptic number.

It is an amenable number.

103081645 is a deficient number, since it is larger than the sum of its proper divisors (20689235).

103081645 is a wasteful number, since it uses less digits than its factorization.

103081645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12155.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 103081645 is about 10152.9131287528. The cubic root of 103081645 is about 468.8786379986.

The spelling of 103081645 in words is "one hundred three million, eighty-one thousand, six hundred forty-five".

Divisors: 1 5 2039 10111 10195 50555 20616329 103081645