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120421052 = 2240973607
BaseRepresentation
bin1110010110101…
…11101010111100
322101121000121222
413023113222330
5221311433202
615541012512
72661363533
oct713275274
9271530558
10120421052
1161a7a134
12343b4138
131bc4377b
1411dc931a
15a88a4a2
hex72d7abc

120421052 has 12 divisors (see below), whose sum is σ = 211254960. Its totient is φ = 60062496.

The previous prime is 120421033. The next prime is 120421099. The reversal of 120421052 is 250124021.

It is a self number, because there is not a number n which added to its sum of digits gives 120421052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35168 + ... + 38439.

It is an arithmetic number, because the mean of its divisors is an integer number (17604580).

Almost surely, 2120421052 is an apocalyptic number.

It is an amenable number.

120421052 is a deficient number, since it is larger than the sum of its proper divisors (90833908).

120421052 is a wasteful number, since it uses less digits than its factorization.

120421052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74020 (or 74018 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 120421052 is about 10973.6526279995. The cubic root of 120421052 is about 493.8186323011.

Adding to 120421052 its reverse (250124021), we get a palindrome (370545073).

The spelling of 120421052 in words is "one hundred twenty million, four hundred twenty-one thousand, fifty-two".

Divisors: 1 2 4 409 818 1636 73607 147214 294428 30105263 60210526 120421052