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212034031 = 1192920749
BaseRepresentation
bin11001010001101…
…10000111101111
3112202222110000021
430220312013233
5413240042111
633012343011
75153155006
oct1450660757
9482873007
10212034031
11a9762340
125b014a67
1334c0b931
1420235c3d
1513934d71
hexca361ef

212034031 has 8 divisors (see below), whose sum is σ = 231570000. Its totient is φ = 192541440.

The previous prime is 212033999. The next prime is 212034037. The reversal of 212034031 is 130430212.

It is a happy number.

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 212034031 - 25 = 212033999 is a prime.

It is a super-2 number, since 2×2120340312 = 89916860604217922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212033996 and 212034014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212034037) 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, 156 + ... + 20593.

It is an arithmetic number, because the mean of its divisors is an integer number (28946250).

Almost surely, 2212034031 is an apocalyptic number.

212034031 is a deficient number, since it is larger than the sum of its proper divisors (19535969).

212034031 is a wasteful number, since it uses less digits than its factorization.

212034031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21689.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 212034031 is about 14561.3883610046. The cubic root of 212034031 is about 596.3050993710.

Adding to 212034031 its reverse (130430212), we get a palindrome (342464243).

The spelling of 212034031 in words is "two hundred twelve million, thirty-four thousand, thirty-one".

Divisors: 1 11 929 10219 20749 228239 19275821 212034031