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31100211232201 = 83413113907019
BaseRepresentation
bin1110001001001000101010…
…00010101111110111001001
311002010011002012020020022201
413010210111002233313021
513034021213033412301
6150051123444120201
76356626140512116
oct704442502576711
9132104065206281
1031100211232201
119a00586506a11
1235a3519996061
131447977c05197
1479738891b90d
1538dec40a2201
hex1c49150afdc9

31100211232201 has 8 divisors (see below), whose sum is σ = 31475023463520. Its totient is φ = 30725401641312.

The previous prime is 31100211232157. The next prime is 31100211232253. The reversal of 31100211232201 is 10223211200113.

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 31100211232201 - 233 = 31091621297609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31100211232901) 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, 33834870 + ... + 34741888.

It is an arithmetic number, because the mean of its divisors is an integer number (3934377932940).

Almost surely, 231100211232201 is an apocalyptic number.

It is an amenable number.

31100211232201 is a deficient number, since it is larger than the sum of its proper divisors (374812231319).

31100211232201 is an equidigital number, since it uses as much as digits as its factorization.

31100211232201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320215.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 31100211232201 its reverse (10223211200113), we get a palindrome (41323422432314).

The spelling of 31100211232201 in words is "thirty-one trillion, one hundred billion, two hundred eleven million, two hundred thirty-two thousand, two hundred one".

Divisors: 1 83 413113 907019 34288379 75282577 374701340147 31100211232201