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102423451 = 1315152177
BaseRepresentation
bin1100001101011…
…01101110011011
321010201122120011
412012231232123
5202210022301
614055142351
72352404434
oct606555633
9233648504
10102423451
11528a7289
122a3749b7
13182b18c0
14d86248b
158ed2a51
hex61adb9b

102423451 has 8 divisors (see below), whose sum is σ = 111034784. Its totient is φ = 93916800.

The previous prime is 102423443. The next prime is 102423457. The reversal of 102423451 is 154324201.

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

It is a cyclic number.

It is not a de Polignac number, because 102423451 - 23 = 102423443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102423457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24126 + ... + 28051.

It is an arithmetic number, because the mean of its divisors is an integer number (13879348).

Almost surely, 2102423451 is an apocalyptic number.

102423451 is a deficient number, since it is larger than the sum of its proper divisors (8611333).

102423451 is a wasteful number, since it uses less digits than its factorization.

102423451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52341.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 102423451 is about 10120.4471739148. The cubic root of 102423451 is about 467.8785495235.

Adding to 102423451 its reverse (154324201), we get a palindrome (256747652).

The spelling of 102423451 in words is "one hundred two million, four hundred twenty-three thousand, four hundred fifty-one".

Divisors: 1 13 151 1963 52177 678301 7878727 102423451