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6401213044301 = 7981028013219
BaseRepresentation
bin101110100100110011000…
…0001111001011001001101
3211122221122112122221211202
41131021212001321121031
51314334141014404201
621340402054555245
71230321012056405
oct135114601713115
924587575587752
106401213044301
11204881497a9a9
12874721368b25
1337582a0aba1a
14181b6b119805
15b179c0e6c6b
hex5d26607964d

6401213044301 has 4 divisors (see below), whose sum is σ = 6482241057600. Its totient is φ = 6320185031004.

The previous prime is 6401213044241. The next prime is 6401213044309. The reversal of 6401213044301 is 1034403121046.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6401213044301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401213044309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40514006531 + ... + 40514006688.

It is an arithmetic number, because the mean of its divisors is an integer number (1620560264400).

Almost surely, 26401213044301 is an apocalyptic number.

It is an amenable number.

6401213044301 is a deficient number, since it is larger than the sum of its proper divisors (81028013299).

6401213044301 is an equidigital number, since it uses as much as digits as its factorization.

6401213044301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81028013298.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 6401213044301 its reverse (1034403121046), we get a palindrome (7435616165347).

The spelling of 6401213044301 in words is "six trillion, four hundred one billion, two hundred thirteen million, forty-four thousand, three hundred one".

Divisors: 1 79 81028013219 6401213044301