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102388430 = 2519353051
BaseRepresentation
bin1100001101001…
…01001011001110
321010122212112002
412012211023032
5202202412210
614054312302
72352200354
oct606451316
9233585462
10102388430
1152882a41
122a358692
131829b991
14d8537d4
158ec74a5
hex61a52ce

102388430 has 16 divisors (see below), whose sum is σ = 185257584. Its totient is φ = 40742400.

The previous prime is 102388427. The next prime is 102388453. The reversal of 102388430 is 34883201.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102388393 and 102388402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24596 + ... + 28455.

It is an arithmetic number, because the mean of its divisors is an integer number (11578599).

Almost surely, 2102388430 is an apocalyptic number.

102388430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102388430 is a deficient number, since it is larger than the sum of its proper divisors (82869154).

102388430 is a wasteful number, since it uses less digits than its factorization.

102388430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53251.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 102388430 is about 10118.7168158813. The cubic root of 102388430 is about 467.8252171977.

The spelling of 102388430 in words is "one hundred two million, three hundred eighty-eight thousand, four hundred thirty".

Divisors: 1 2 5 10 193 386 965 1930 53051 106102 265255 530510 10238843 20477686 51194215 102388430