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211001032031 = 1319771648613
BaseRepresentation
bin1100010010000010100…
…1000011110101011111
3202011122000200000102012
43010200221003311133
511424112231011111
6240533232221435
721146542115456
oct3044051036537
9664560600365
10211001032031
1181537644409
1234a8799a87b
1316b8851849a
14a2d917db9d
15574e16948b
hex3120a43d5f

211001032031 has 8 divisors (see below), whose sum is σ = 212829472944. Its totient is φ = 209175890560.

The previous prime is 211001032019. The next prime is 211001032069. The reversal of 211001032031 is 130230100112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-211001032031 is a prime.

It is a super-2 number, since 2×2110010320312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211001031997 and 211001032015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211001532031) 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, 696320 + ... + 952293.

It is an arithmetic number, because the mean of its divisors is an integer number (26603684118).

Almost surely, 2211001032031 is an apocalyptic number.

211001032031 is a deficient number, since it is larger than the sum of its proper divisors (1828440913).

211001032031 is a wasteful number, since it uses less digits than its factorization.

211001032031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649721.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 211001032031 its reverse (130230100112), we get a palindrome (341231132143).

The spelling of 211001032031 in words is "two hundred eleven billion, one million, thirty-two thousand, thirty-one".

Divisors: 1 131 977 127987 1648613 215968303 1610694901 211001032031