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102144254 = 2471086641
BaseRepresentation
bin1100001011010…
…01100011111110
321010012110120112
412011221203332
5202122104004
614045150022
72350132442
oct605514376
9233173515
10102144254
1152726543
122a25b312
13182147b4
14d7cc822
158e79e6e
hex61698fe

102144254 has 8 divisors (see below), whose sum is σ = 156476448. Its totient is φ = 49985440.

The previous prime is 102144253. The next prime is 102144257. The reversal of 102144254 is 452441201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102144253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543227 + ... + 543414.

It is an arithmetic number, because the mean of its divisors is an integer number (19559556).

Almost surely, 2102144254 is an apocalyptic number.

102144254 is a deficient number, since it is larger than the sum of its proper divisors (54332194).

102144254 is a wasteful number, since it uses less digits than its factorization.

102144254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086690.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 102144254 is about 10106.6440523054. The cubic root of 102144254 is about 467.4530312084.

Adding to 102144254 its reverse (452441201), we get a palindrome (554585455).

The spelling of 102144254 in words is "one hundred two million, one hundred forty-four thousand, two hundred fifty-four".

Divisors: 1 2 47 94 1086641 2173282 51072127 102144254