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3025201421 = 111392637523
BaseRepresentation
bin1011010001010000…
…1110100100001101
321210211110011012002
42310110032210031
522143422421141
61220104322045
7134652534134
oct26424164415
97724404162
103025201421
111312713670
12705173325
13392999318
14209ac691b
1512a8c0e9b
hexb450e90d

3025201421 has 16 divisors (see below), whose sum is σ = 3337044480. Its totient is φ = 2719654320.

The previous prime is 3025201397. The next prime is 3025201429. The reversal of 3025201421 is 1241025203.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3025201421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3025201393 and 3025201402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3025201429) 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, 398366 + ... + 405888.

It is an arithmetic number, because the mean of its divisors is an integer number (208565280).

Almost surely, 23025201421 is an apocalyptic number.

It is an amenable number.

3025201421 is a deficient number, since it is larger than the sum of its proper divisors (311843059).

3025201421 is a wasteful number, since it uses less digits than its factorization.

3025201421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7936.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 3025201421 is about 55001.8310695199. The cubic root of 3025201421 is about 1446.2768407899.

Adding to 3025201421 its reverse (1241025203), we get a palindrome (4266226624).

The spelling of 3025201421 in words is "three billion, twenty-five million, two hundred one thousand, four hundred twenty-one".

Divisors: 1 11 139 263 1529 2893 7523 36557 82753 402127 1045697 1978549 11502667 21764039 275018311 3025201421