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120204740 = 2256010237
BaseRepresentation
bin1110010101000…
…10110111000100
322101012000220102
413022202313010
5221233022430
615532223232
72656503065
oct712426704
9271160812
10120204740
1161941667
123430ab18
131bb99186
1411d7056c
15a846345
hex72a2dc4

120204740 has 12 divisors (see below), whose sum is σ = 252429996. Its totient is φ = 48081888.

The previous prime is 120204731. The next prime is 120204757. The reversal of 120204740 is 47402021.

It can be written as a sum of positive squares in 2 ways, for example, as 79423744 + 40780996 = 8912^2 + 6386^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6010237 = 120204740 / (1 + 2 + 0 + 2 + 0 + 4 + 7 + 4 + 0).

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, 3005099 + ... + 3005138.

It is an arithmetic number, because the mean of its divisors is an integer number (21035833).

Almost surely, 2120204740 is an apocalyptic number.

120204740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120204740 is an abundant number, since it is smaller than the sum of its proper divisors (132225256).

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

120204740 is a wasteful number, since it uses less digits than its factorization.

120204740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6010246 (or 6010244 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 120204740 is about 10963.7922271448. The cubic root of 120204740 is about 493.5227734026.

Adding to 120204740 its reverse (47402021), we get a palindrome (167606761).

The spelling of 120204740 in words is "one hundred twenty million, two hundred four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 6010237 12020474 24040948 30051185 60102370 120204740