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1025001445 = 51383313607
BaseRepresentation
bin111101000110000…
…100011111100101
32122102201110122111
4331012010133211
54044400021240
6245413201021
734254240256
oct7506043745
92572643574
101025001445
1148664a836
12247330171
13134481c40
149a1b8b2d
155eebe1ea
hex3d1847e5

1025001445 has 32 divisors (see below), whose sum is σ = 1347075072. Its totient is φ = 744187392.

The previous prime is 1025001407. The next prime is 1025001457. The reversal of 1025001445 is 5441005201.

It is not a de Polignac number, because 1025001445 - 211 = 1024999397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1688332 + ... + 1688938.

It is an arithmetic number, because the mean of its divisors is an integer number (42096096).

Almost surely, 21025001445 is an apocalyptic number.

It is an amenable number.

1025001445 is a deficient number, since it is larger than the sum of its proper divisors (322073627).

1025001445 is a wasteful number, since it uses less digits than its factorization.

1025001445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1025001445 is about 32015.6437542649. The cubic root of 1025001445 is about 1008.2653114113.

Adding to 1025001445 its reverse (5441005201), we get a palindrome (6466006646).

The spelling of 1025001445 in words is "one billion, twenty-five million, one thousand, four hundred forty-five".

Divisors: 1 5 13 65 83 313 415 607 1079 1565 3035 4069 5395 7891 20345 25979 39455 50381 129895 189991 251905 337727 654953 949955 1688635 2469883 3274765 12349415 15769253 78846265 205000289 1025001445