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102231434 = 2313163309
BaseRepresentation
bin1100001011111…
…10110110001010
321010100220011102
412011332312022
5202132401214
614051101402
72350644554
oct605766612
9233326142
10102231434
1152785a98
122a2a1862
1318245396
14d8124d4
158e95bde
hex617ed8a

102231434 has 8 divisors (see below), whose sum is σ = 153838020. Its totient is φ = 50952096.

The previous prime is 102231431. The next prime is 102231443. The reversal of 102231434 is 434132201.

It can be written as a sum of positive squares in 2 ways, for example, as 102111025 + 120409 = 10105^2 + 347^2 .

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

It is not an unprimeable number, because it can be changed into a prime (102231431) 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, 81029 + ... + 82280.

Almost surely, 2102231434 is an apocalyptic number.

102231434 is a deficient number, since it is larger than the sum of its proper divisors (51606586).

102231434 is a wasteful number, since it uses less digits than its factorization.

102231434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163624.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 102231434 is about 10110.9561367855. The cubic root of 102231434 is about 467.5859835937.

Adding to 102231434 its reverse (434132201), we get a palindrome (536363635).

The spelling of 102231434 in words is "one hundred two million, two hundred thirty-one thousand, four hundred thirty-four".

Divisors: 1 2 313 626 163309 326618 51115717 102231434