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1630071037 = 77113012521
BaseRepresentation
bin110000100101000…
…1110100011111101
311012121021012002101
41201022032203331
511314244233122
6425430025101
755252242460
oct14112164375
94177235071
101630071037
11767150551
12395aa8191
131cc93419a
141166c12d7
159818e027
hex6128e8fd

1630071037 has 16 divisors (see below), whose sum is σ = 1891378944. Its totient is φ = 1375920000.

The previous prime is 1630071031. The next prime is 1630071049. The reversal of 1630071037 is 7301700361.

It is not a de Polignac number, because 1630071037 - 227 = 1495853309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1630070996 and 1630071014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630071031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645337 + ... + 647857.

It is an arithmetic number, because the mean of its divisors is an integer number (118211184).

Almost surely, 21630071037 is an apocalyptic number.

It is an amenable number.

1630071037 is a deficient number, since it is larger than the sum of its proper divisors (261307907).

1630071037 is a wasteful number, since it uses less digits than its factorization.

1630071037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900.

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 1630071037 is about 40374.1382199051. The cubic root of 1630071037 is about 1176.8890180624.

Adding to 1630071037 its reverse (7301700361), we get a palindrome (8931771398).

The spelling of 1630071037 in words is "one billion, six hundred thirty million, seventy-one thousand, thirty-seven".

Divisors: 1 7 71 497 1301 2521 9107 17647 92371 178991 646597 1252937 3279821 22958747 232867291 1630071037