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102144430 = 2510214443
BaseRepresentation
bin1100001011010…
…01100110101110
321010012110211001
412011221212232
5202122110210
614045150514
72350133113
oct605514656
9233173731
10102144430
1152726693
122a25b43a
13182148bb
14d7cc90a
158e7a03a
hex61699ae

102144430 has 8 divisors (see below), whose sum is σ = 183859992. Its totient is φ = 40857768.

The previous prime is 102144421. The next prime is 102144443. The reversal of 102144430 is 34441201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 102144398 and 102144407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5107212 + ... + 5107231.

It is an arithmetic number, because the mean of its divisors is an integer number (22982499).

Almost surely, 2102144430 is an apocalyptic number.

102144430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102144430 is a deficient number, since it is larger than the sum of its proper divisors (81715562).

102144430 is a wasteful number, since it uses less digits than its factorization.

102144430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10214450.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 102144430 is about 10106.6527594451. The cubic root of 102144430 is about 467.4532996904.

Adding to 102144430 its reverse (34441201), we get a palindrome (136585631).

It can be divided in two parts, 1021 and 44430, that added together give a triangular number (45451 = T301).

The spelling of 102144430 in words is "one hundred two million, one hundred forty-four thousand, four hundred thirty".

Divisors: 1 2 5 10 10214443 20428886 51072215 102144430