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103287930 = 23526912799
BaseRepresentation
bin1100010100000…
…00110001111010
321012100120101220
412022000301322
5202420203210
614125452510
72362634664
oct612006172
9235316356
10103287930
1153337829
122a711136
1318525225
14da09534
159103c70
hex6280c7a

103287930 has 32 divisors (see below), whose sum is σ = 248832000. Its totient is φ = 27438912.

The previous prime is 103287923. The next prime is 103287967. The reversal of 103287930 is 39782301.

It is a junction number, because it is equal to n+sod(n) for n = 103287891 and 103287900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1671 + ... + 14469.

It is an arithmetic number, because the mean of its divisors is an integer number (7776000).

Almost surely, 2103287930 is an apocalyptic number.

103287930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103287930 is an abundant number, since it is smaller than the sum of its proper divisors (145544070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103287930 is a wasteful number, since it uses less digits than its factorization.

103287930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13078.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 103287930 is about 10163.0669583546. The cubic root of 103287930 is about 469.1911998896.

The spelling of 103287930 in words is "one hundred three million, two hundred eighty-seven thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 269 538 807 1345 1614 2690 4035 8070 12799 25598 38397 63995 76794 127990 191985 383970 3442931 6885862 10328793 17214655 20657586 34429310 51643965 103287930