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3121101142 = 23150340341
BaseRepresentation
bin1011101000001000…
…0011100101010110
322001111220100212121
42322002003211112
522343000214032
61233412010154
7140225631145
oct27202034526
98044810777
103121101142
111361864535
1273130095a
133a9805713
1421872b75c
15134015a97
hexba083956

3121101142 has 8 divisors (see below), whose sum is σ = 4832672832. Its totient is φ = 1510210200.

The previous prime is 3121101089. The next prime is 3121101143. The reversal of 3121101142 is 2411011213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121101143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25170109 + ... + 25170232.

It is an arithmetic number, because the mean of its divisors is an integer number (604084104).

Almost surely, 23121101142 is an apocalyptic number.

3121101142 is a deficient number, since it is larger than the sum of its proper divisors (1711571690).

3121101142 is a wasteful number, since it uses less digits than its factorization.

3121101142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50340374.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 3121101142 is about 55866.8161075965. The cubic root of 3121101142 is about 1461.4005984724.

Adding to 3121101142 its reverse (2411011213), we get a palindrome (5532112355).

The spelling of 3121101142 in words is "three billion, one hundred twenty-one million, one hundred one thousand, one hundred forty-two".

Divisors: 1 2 31 62 50340341 100680682 1560550571 3121101142