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2031212001 = 371311176661
BaseRepresentation
bin111100100010001…
…1101010111100001
312020120002021001010
41321010131113201
513124442241001
6533315531133
7101223005610
oct17104352741
95216067033
102031212001
11952625705
124882b9aa9
13264a84bc0
14153aa1877
15bd4ca8d6
hex7911d5e1

2031212001 has 32 divisors (see below), whose sum is σ = 3336755968. Its totient is φ = 1070288640.

The previous prime is 2031211981. The next prime is 2031212009. The reversal of 2031212001 is 1002121302.

It is not a de Polignac number, because 2031212001 - 210 = 2031210977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2031212009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301611 + ... + 308271.

It is an arithmetic number, because the mean of its divisors is an integer number (104273624).

Almost surely, 22031212001 is an apocalyptic number.

2031212001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2031212001 is a deficient number, since it is larger than the sum of its proper divisors (1305543967).

2031212001 is a wasteful number, since it uses less digits than its factorization.

2031212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7801.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2031212001 is about 45068.9693802732. The cubic root of 2031212001 is about 1266.4413574861.

Adding to 2031212001 its reverse (1002121302), we get a palindrome (3033333303).

The spelling of 2031212001 in words is "two billion, thirty-one million, two hundred twelve thousand, one".

Divisors: 1 3 7 13 21 39 91 273 1117 3351 6661 7819 14521 19983 23457 43563 46627 86593 101647 139881 259779 304941 606151 1818453 7440337 22321011 52082359 96724381 156247077 290173143 677070667 2031212001