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10100049001 = 762932
BaseRepresentation
bin10010110100000001…
…01000010001101001
3222001220000122112221
421122000220101221
5131141103032001
64350115034041
7505201000000
oct113200502151
928056018487
1010100049001
11431323a339
121b5a59b921
13c4c64a373
146bb567c37
153e1a721a1
hex25a028469

10100049001 has 21 divisors (see below), whose sum is σ = 11823729751. Its totient is φ = 8627638152.

The previous prime is 10100048969. The next prime is 10100049017. The reversal of 10100049001 is 10094000101.

It is a happy number.

The square root of 10100049001 is 100499.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9556040025 + 544008976 = 97755^2 + 23324^2 .

It is not a de Polignac number, because 10100049001 - 25 = 10100048969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10100043001) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 34471011 + ... + 34471303.

Almost surely, 210100049001 is an apocalyptic number.

10100049001 is the 100499-th square number.

10100049001 is the 50250-th centered octagonal number.

It is an amenable number.

10100049001 is a deficient number, since it is larger than the sum of its proper divisors (1723680750).

10100049001 is an frugal number, since it uses more digits than its factorization.

10100049001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Multiplying 10100049001 by its sum of digits (16), we get a square (161600784016 = 4019962).

Multiplying 10100049001 by its product of nonzero digits (36), we get a square (363601764036 = 6029942).

Adding to 10100049001 its reverse (10094000101), we get a palindrome (20194049102).

The spelling of 10100049001 in words is "ten billion, one hundred million, forty-nine thousand, one".

Divisors: 1 7 49 293 343 2051 2401 14357 16807 85849 100499 117649 600943 703493 4206601 4924451 29446207 34471157 206123449 1442864143 10100049001