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3121041140 = 225722293151
BaseRepresentation
bin1011101000000111…
…0100111011110100
322001111210022120022
42322001310323310
522342441304030
61233410424312
7140225261210
oct27201647364
98044708508
103121041140
111361823448
12731292098
133a97b4309
14218713940
15134002de5
hexba074ef4

3121041140 has 24 divisors (see below), whose sum is σ = 7490499072. Its totient is φ = 1070071200.

The previous prime is 3121041127. The next prime is 3121041181. The reversal of 3121041140 is 411401213.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 11146436 + ... + 11146715.

It is an arithmetic number, because the mean of its divisors is an integer number (312104128).

Almost surely, 23121041140 is an apocalyptic number.

It is an amenable number.

3121041140 is an abundant number, since it is smaller than the sum of its proper divisors (4369457932).

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

3121041140 is a wasteful number, since it uses less digits than its factorization.

3121041140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22293167 (or 22293165 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 3121041140 is about 55866.2790957121. The cubic root of 3121041140 is about 1461.3912334527.

Adding to 3121041140 its reverse (411401213), we get a palindrome (3532442353).

The spelling of 3121041140 in words is "three billion, one hundred twenty-one million, forty-one thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 22293151 44586302 89172604 111465755 156052057 222931510 312104114 445863020 624208228 780260285 1560520570 3121041140