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102939503 = 1018631181
BaseRepresentation
bin1100010001010…
…11101101101111
321011200212110012
412020223231233
5202323031003
614114203435
72356654112
oct610535557
9234625405
10102939503
1153119a77
122a58357b
1318432764
14d958579
1590858d8
hex622bb6f

102939503 has 8 divisors (see below), whose sum is σ = 104167296. Its totient is φ = 101716000.

The previous prime is 102939461. The next prime is 102939517. The reversal of 102939503 is 305939201.

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 102939503 - 220 = 101890927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102939503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102939523) 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, 86573 + ... + 87753.

It is an arithmetic number, because the mean of its divisors is an integer number (13020912).

Almost surely, 2102939503 is an apocalyptic number.

102939503 is a deficient number, since it is larger than the sum of its proper divisors (1227793).

102939503 is a wasteful number, since it uses less digits than its factorization.

102939503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 102939503 is about 10145.9106540517. The cubic root of 102939503 is about 468.6630224873.

The spelling of 102939503 in words is "one hundred two million, nine hundred thirty-nine thousand, five hundred three".

Divisors: 1 101 863 1181 87163 119281 1019203 102939503