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1025415001 = 13120165677
BaseRepresentation
bin111101000111101…
…001011101011001
32122110111110221101
4331013221131121
54100001240001
6245430111401
734260612052
oct7507513531
92573443841
101025415001
11486902516
122474ab561
13134598250
149a285729
1560051a01
hex3d1e9759

1025415001 has 8 divisors (see below), whose sum is σ = 1105229384. Its totient is φ = 945734400.

The previous prime is 1025414987. The next prime is 1025415029. The reversal of 1025415001 is 1005145201.

It can be written as a sum of positive squares in 4 ways, for example, as 130507776 + 894907225 = 11424^2 + 29915^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1025415001 - 215 = 1025382233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1025415001.

It is not an unprimeable number, because it can be changed into a prime (1025415071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17226 + ... + 48451.

It is an arithmetic number, because the mean of its divisors is an integer number (138153673).

Almost surely, 21025415001 is an apocalyptic number.

It is an amenable number.

1025415001 is a deficient number, since it is larger than the sum of its proper divisors (79814383).

1025415001 is a wasteful number, since it uses less digits than its factorization.

1025415001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66891.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1025415001 is about 32022.1017580046. The cubic root of 1025415001 is about 1008.4008943431.

The spelling of 1025415001 in words is "one billion, twenty-five million, four hundred fifteen thousand, one".

Divisors: 1 13 1201 15613 65677 853801 78878077 1025415001