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102743038 = 2131392149
BaseRepresentation
bin1100001111110…
…11101111111110
321011022212221201
412013323233332
5202300234123
614110050114
72355205246
oct607735776
9234285851
10102743038
1152aa5402
122a4a993a
13183941c8
14d906b26
1590475ad
hex61fbbfe

102743038 has 8 divisors (see below), whose sum is σ = 155291400. Its totient is φ = 50979240.

The previous prime is 102743033. The next prime is 102743059. The reversal of 102743038 is 830347201.

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

It is a super-2 number, since 2×1027430382 = 21112263714938888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102742997 and 102743015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102743033) 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, 195813 + ... + 196336.

It is an arithmetic number, because the mean of its divisors is an integer number (19411425).

Almost surely, 2102743038 is an apocalyptic number.

102743038 is a deficient number, since it is larger than the sum of its proper divisors (52548362).

102743038 is a wasteful number, since it uses less digits than its factorization.

102743038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392282.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 102743038 is about 10136.2240504046. The cubic root of 102743038 is about 468.3646772868.

The spelling of 102743038 in words is "one hundred two million, seven hundred forty-three thousand, thirty-eight".

Divisors: 1 2 131 262 392149 784298 51371519 102743038