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102132400 = 2452311821
BaseRepresentation
bin1100001011001…
…10101010110000
321010011212022111
412011212222300
5202121214100
614045015104
72350053046
oct605465260
9233155274
10102132400
1152718647
122a254494
131820c296
14d7c8396
158e766ba
hex6166ab0

102132400 has 60 divisors (see below), whose sum is σ = 246461904. Its totient is φ = 40672000.

The previous prime is 102132389. The next prime is 102132409. The reversal of 102132400 is 4231201.

It is not an unprimeable number, because it can be changed into a prime (102132409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123990 + ... + 124810.

Almost surely, 2102132400 is an apocalyptic number.

102132400 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 102132400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123230952).

102132400 is an abundant number, since it is smaller than the sum of its proper divisors (144329504).

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

102132400 is a wasteful number, since it uses less digits than its factorization.

102132400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 102132400 is about 10106.0575893867. The cubic root of 102132400 is about 467.4349476243.

Adding to 102132400 its reverse (4231201), we get a palindrome (106363601).

The spelling of 102132400 in words is "one hundred two million, one hundred thirty-two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 311 400 622 821 1244 1555 1642 2488 3110 3284 4105 4976 6220 6568 7775 8210 12440 13136 15550 16420 20525 24880 31100 32840 41050 62200 65680 82100 124400 164200 255331 328400 510662 1021324 1276655 2042648 2553310 4085296 5106620 6383275 10213240 12766550 20426480 25533100 51066200 102132400