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102230100 = 2235527601
BaseRepresentation
bin1100001011111…
…10100001010100
321010100211100000
412011332201110
5202132330400
614051051300
72350640640
oct605764124
9233324300
10102230100
1152784a95
122a2a0b30
13182448ab
14d811c20
158e95600
hex617e854

102230100 has 216 divisors, whose sum is σ = 380406208. Its totient is φ = 23328000.

The previous prime is 102230069. The next prime is 102230153. The reversal of 102230100 is 1032201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

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 71 ways as a sum of consecutive naturals, for example, 169800 + ... + 170400.

Almost surely, 2102230100 is an apocalyptic number.

102230100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102230100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190203104).

102230100 is an abundant number, since it is smaller than the sum of its proper divisors (278176108).

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

102230100 is a wasteful number, since it uses less digits than its factorization.

102230100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 102230100 is about 10110.8901685262. The cubic root of 102230100 is about 467.5839497691.

Adding to 102230100 its reverse (1032201), we get a palindrome (103262301).

The spelling of 102230100 in words is "one hundred two million, two hundred thirty thousand, one hundred".