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31043210401 = 719233407597
BaseRepresentation
bin11100111010010100…
…011100110010100001
32222010110021111000101
4130322110130302201
51002034030213101
622132215422401
72146164635410
oct347224346241
988113244011
1031043210401
11121900a0495
126024384a01
132c09551168
141706c03477
15c1a4e3401
hex73a51cca1

31043210401 has 8 divisors (see below), whose sum is σ = 37345215680. Its totient is φ = 25208020368.

The previous prime is 31043210267. The next prime is 31043210441. The reversal of 31043210401 is 10401234013.

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

It is a cyclic number.

It is not a de Polignac number, because 31043210401 - 219 = 31042686113 is a prime.

It is a super-3 number, since 3×310432104013 (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31043210441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116703666 + ... + 116703931.

It is an arithmetic number, because the mean of its divisors is an integer number (4668151960).

Almost surely, 231043210401 is an apocalyptic number.

It is an amenable number.

31043210401 is a deficient number, since it is larger than the sum of its proper divisors (6302005279).

31043210401 is a wasteful number, since it uses less digits than its factorization.

31043210401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233407623.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31043210401 its reverse (10401234013), we get a palindrome (41444444414).

The spelling of 31043210401 in words is "thirty-one billion, forty-three million, two hundred ten thousand, four hundred one".

Divisors: 1 7 19 133 233407597 1633853179 4434744343 31043210401