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103442431 = 2331314369
BaseRepresentation
bin1100010101001…
…10011111111111
321012122102100011
412022212133333
5202440124211
614133044051
72364150301
oct612463777
9235572304
10103442431
1153432914
122a786627
131857a651
14da49971
159134921
hex62a67ff

103442431 has 8 divisors (see below), whose sum is σ = 108292320. Its totient is φ = 98621952.

The previous prime is 103442429. The next prime is 103442461. The reversal of 103442431 is 134244301.

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 103442431 - 21 = 103442429 is a prime.

It is a super-2 number, since 2×1034424312 = 21400673062379522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103442411) 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, 15 + ... + 14383.

It is an arithmetic number, because the mean of its divisors is an integer number (13536540).

Almost surely, 2103442431 is an apocalyptic number.

103442431 is a deficient number, since it is larger than the sum of its proper divisors (4849889).

103442431 is a wasteful number, since it uses less digits than its factorization.

103442431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14705.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 103442431 is about 10170.6652191486. The cubic root of 103442431 is about 469.4250264853.

Adding to 103442431 its reverse (134244301), we get a palindrome (237686732).

The spelling of 103442431 in words is "one hundred three million, four hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 23 313 7199 14369 330487 4497497 103442431