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102812001 = 3231490029
BaseRepresentation
bin1100010000011…
…00100101100001
321011110101112220
412020030211201
5202304441001
614111341253
72355613305
oct610144541
9234411486
10102812001
11530421a6
122a521829
13183b9706
14d923d05
15905cc36
hex620c961

102812001 has 8 divisors (see below), whose sum is σ = 143042880. Its totient is φ = 65561232.

The previous prime is 102811993. The next prime is 102812009. The reversal of 102812001 is 100218201.

It is an interprime number because it is at equal distance from previous prime (102811993) and next prime (102812009).

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

It is not a de Polignac number, because 102812001 - 23 = 102811993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102812009) 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, 744946 + ... + 745083.

It is an arithmetic number, because the mean of its divisors is an integer number (17880360).

Almost surely, 2102812001 is an apocalyptic number.

It is an amenable number.

102812001 is a deficient number, since it is larger than the sum of its proper divisors (40230879).

102812001 is a wasteful number, since it uses less digits than its factorization.

102812001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490055.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 102812001 is about 10139.6252889345. The cubic root of 102812001 is about 468.4694454859.

The spelling of 102812001 in words is "one hundred two million, eight hundred twelve thousand, one".

Divisors: 1 3 23 69 1490029 4470087 34270667 102812001