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451212140001 = 3721486292381
BaseRepresentation
bin1101001000011100101…
…01101101110111100001
31121010122202020122002210
412210032111231313201
524343040301440001
6543141202032333
744412312623430
oct6441625556741
91533582218083
10451212140001
111643a3543147
12735460486a9
133371a56316c
1417ba58a3117
15bb0c8c5dd6
hex690e56dde1

451212140001 has 8 divisors (see below), whose sum is σ = 687561356224. Its totient is φ = 257835508560.

The previous prime is 451212139981. The next prime is 451212140003. The reversal of 451212140001 is 100041212154.

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

It is not a de Polignac number, because 451212140001 - 215 = 451212107233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 21486292381 = 451212140001 / (4 + 5 + 1 + 2 + 1 + 2 + 1 + 4 + 0 + 0 + 0 + 1).

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 451212140001.

It is not an unprimeable number, because it can be changed into a prime (451212140003) 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, 10743146170 + ... + 10743146211.

It is an arithmetic number, because the mean of its divisors is an integer number (85945169528).

Almost surely, 2451212140001 is an apocalyptic number.

It is an amenable number.

451212140001 is a deficient number, since it is larger than the sum of its proper divisors (236349216223).

451212140001 is a wasteful number, since it uses less digits than its factorization.

451212140001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21486292391.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 451212140001 its reverse (100041212154), we get a palindrome (551253352155).

The spelling of 451212140001 in words is "four hundred fifty-one billion, two hundred twelve million, one hundred forty thousand, one".

Divisors: 1 3 7 21 21486292381 64458877143 150404046667 451212140001