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120394649 is a prime number
BaseRepresentation
bin1110010110100…
…01001110011001
322101112200102002
413023101032121
5221310112044
615540250345
72661223544
oct713211631
9271480362
10120394649
1161a61311
12343a09b5
131bc3474b
1411dbd85b
15a88274e
hex72d1399

120394649 has 2 divisors, whose sum is σ = 120394650. Its totient is φ = 120394648.

The previous prime is 120394643. The next prime is 120394667. The reversal of 120394649 is 946493021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87984400 + 32410249 = 9380^2 + 5693^2 .

It is a cyclic number.

It is not a de Polignac number, because 120394649 - 216 = 120329113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (120394643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60197324 + 60197325.

It is an arithmetic number, because the mean of its divisors is an integer number (60197325).

Almost surely, 2120394649 is an apocalyptic number.

It is an amenable number.

120394649 is a deficient number, since it is larger than the sum of its proper divisors (1).

120394649 is an equidigital number, since it uses as much as digits as its factorization.

120394649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 120394649 is about 10972.4495441993. The cubic root of 120394649 is about 493.7825388159.

The spelling of 120394649 in words is "one hundred twenty million, three hundred ninety-four thousand, six hundred forty-nine".