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123053442 = 2320508907
BaseRepresentation
bin1110101010110…
…10010110000010
322120112202120220
413111122112002
5223000202232
620113243510
73022636251
oct725322602
9276482526
10123053442
1163507966
1235263596
131c6559b5
14124b2798
15ac0a42c
hex755a582

123053442 has 8 divisors (see below), whose sum is σ = 246106896. Its totient is φ = 41017812.

The previous prime is 123053387. The next prime is 123053459. The reversal of 123053442 is 244350321.

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

123053442 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10254448 + ... + 10254459.

It is an arithmetic number, because the mean of its divisors is an integer number (30763362).

Almost surely, 2123053442 is an apocalyptic number.

123053442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123053442 is a wasteful number, since it uses less digits than its factorization.

123053442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20508912.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 123053442 is about 11092.9455961886. The cubic root of 123053442 is about 497.3909992423.

The spelling of 123053442 in words is "one hundred twenty-three million, fifty-three thousand, four hundred forty-two".

Divisors: 1 2 3 6 20508907 41017814 61526721 123053442