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102506943 = 3711443753
BaseRepresentation
bin1100001110000…
…10000110111111
321010212220002110
412013002012333
5202220210233
614101025103
72353203030
oct607020677
9233786073
10102506943
1152953a90
122a3b5193
13183108c6
14d884a87
158eec663
hex61c21bf

102506943 has 16 divisors (see below), whose sum is σ = 170401536. Its totient is φ = 53250240.

The previous prime is 102506941. The next prime is 102506947. The reversal of 102506943 is 349605201.

It is not a de Polignac number, because 102506943 - 21 = 102506941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102506943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102506941) 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, 221646 + ... + 222107.

It is an arithmetic number, because the mean of its divisors is an integer number (10650096).

Almost surely, 2102506943 is an apocalyptic number.

102506943 is a deficient number, since it is larger than the sum of its proper divisors (67894593).

102506943 is a wasteful number, since it uses less digits than its factorization.

102506943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443774.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 102506943 is about 10124.5712501814. The cubic root of 102506943 is about 468.0056477147.

The spelling of 102506943 in words is "one hundred two million, five hundred six thousand, nine hundred forty-three".

Divisors: 1 3 7 11 21 33 77 231 443753 1331259 3106271 4881283 9318813 14643849 34168981 102506943