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1631507068 = 221723992751
BaseRepresentation
bin110000100111110…
…1101001001111100
311012200222010221201
41201033231021330
511320131211233
6425520505244
755300403242
oct14117551174
94180863851
101631507068
11767a41454
1239647b224
132000179c9
14116976792
159837477d
hex613ed27c

1631507068 has 12 divisors (see below), whose sum is σ = 3023086752. Its totient is φ = 767768000.

The previous prime is 1631507023. The next prime is 1631507069. The reversal of 1631507068 is 8607051361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1631507069) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11996308 + ... + 11996443.

It is an arithmetic number, because the mean of its divisors is an integer number (251923896).

Almost surely, 21631507068 is an apocalyptic number.

It is an amenable number.

1631507068 is a deficient number, since it is larger than the sum of its proper divisors (1391579684).

1631507068 is a wasteful number, since it uses less digits than its factorization.

1631507068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23992772 (or 23992770 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 1631507068 is about 40391.9183500858. The cubic root of 1631507068 is about 1177.2345148798.

The spelling of 1631507068 in words is "one billion, six hundred thirty-one million, five hundred seven thousand, sixty-eight".

Divisors: 1 2 4 17 34 68 23992751 47985502 95971004 407876767 815753534 1631507068