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120421741 = 1126171613
BaseRepresentation
bin1110010110101…
…11110101101101
322101121001120111
413023113311231
5221311443431
615541020021
72661365536
oct713276555
9271531514
10120421741
1161a7a700
12343b4611
131bc43b8b
1411dc968d
15a88a7b1
hex72d7d6d

120421741 has 12 divisors (see below), whose sum is σ = 132661116. Its totient is φ = 109229120.

The previous prime is 120421739. The next prime is 120421757. The reversal of 120421741 is 147124021.

It can be written as a sum of positive squares in 2 ways, for example, as 31967716 + 88454025 = 5654^2 + 9405^2 .

It is not a de Polignac number, because 120421741 - 21 = 120421739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120421241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73851 + ... + 75463.

It is an arithmetic number, because the mean of its divisors is an integer number (11055093).

Almost surely, 2120421741 is an apocalyptic number.

120421741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120421741 is a deficient number, since it is larger than the sum of its proper divisors (12239375).

120421741 is a wasteful number, since it uses less digits than its factorization.

120421741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252 (or 2241 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 120421741 is about 10973.6840213303. The cubic root of 120421741 is about 493.8195741087.

Adding to 120421741 its reverse (147124021), we get a palindrome (267545762).

The spelling of 120421741 in words is "one hundred twenty million, four hundred twenty-one thousand, seven hundred forty-one".

Divisors: 1 11 121 617 1613 6787 17743 74657 195173 995221 10947431 120421741