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102030136 = 23131317489
BaseRepresentation
bin1100001010011…
…01101100111000
321002222200000221
412011031230320
5202104431021
614042505424
72346145645
oct605155470
9232880027
10102030136
115265882a
122a205274
13181a4880
14d79cdcc
158e56241
hex614db38

102030136 has 32 divisors (see below), whose sum is σ = 207622800. Its totient is φ = 46725120.

The previous prime is 102030121. The next prime is 102030143. The reversal of 102030136 is 631030201.

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, 9880 + ... + 17368.

Almost surely, 2102030136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102030136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103811400).

102030136 is an abundant number, since it is smaller than the sum of its proper divisors (105592664).

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

102030136 is a wasteful number, since it uses less digits than its factorization.

102030136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7639 (or 7635 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 102030136 is about 10100.9967824963. The cubic root of 102030136 is about 467.2788831080.

Adding to 102030136 its reverse (631030201), we get a palindrome (733060337).

The spelling of 102030136 in words is "one hundred two million, thirty thousand, one hundred thirty-six".

Divisors: 1 2 4 8 13 26 52 104 131 262 524 1048 1703 3406 6812 7489 13624 14978 29956 59912 97357 194714 389428 778856 981059 1962118 3924236 7848472 12753767 25507534 51015068 102030136