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311214001 = 744459143
BaseRepresentation
bin10010100011001…
…011111110110001
3210200121022100111
4102203023332301
51114132322001
650514221321
710466163310
oct2243137661
9720538314
10311214001
1114a74375a
1288284841
134c6260c7
142d492277
151c4c6851
hex128cbfb1

311214001 has 4 divisors (see below), whose sum is σ = 355673152. Its totient is φ = 266754852.

The previous prime is 311213999. The next prime is 311214017. The reversal of 311214001 is 100412113.

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 not a de Polignac number, because 311214001 - 21 = 311213999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311214031) 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, 22229565 + ... + 22229578.

It is an arithmetic number, because the mean of its divisors is an integer number (88918288).

Almost surely, 2311214001 is an apocalyptic number.

It is an amenable number.

311214001 is a deficient number, since it is larger than the sum of its proper divisors (44459151).

311214001 is an equidigital number, since it uses as much as digits as its factorization.

311214001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44459150.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 311214001 is about 17641.2584868540. The cubic root of 311214001 is about 677.6722607684.

Adding to 311214001 its reverse (100412113), we get a palindrome (411626114).

The spelling of 311214001 in words is "three hundred eleven million, two hundred fourteen thousand, one".

Divisors: 1 7 44459143 311214001