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40231211213 = 672971202109
BaseRepresentation
bin100101011101111101…
…111001000011001101
310211211210010021122202
4211131331321003031
51124343142224323
630252034251245
72622652436654
oct453575710315
9124753107582
1040231211213
1116075519496
127969426b25
133a41c46c2b
141d3919619b
1510a6e58d28
hex95df790cd

40231211213 has 8 divisors (see below), whose sum is σ = 40845622560. Its totient is φ = 39617210160.

The previous prime is 40231211201. The next prime is 40231211219. The reversal of 40231211213 is 31211213204.

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 40231211213 - 24 = 40231211197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40231211219) 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, 98003 + ... + 300111.

It is an arithmetic number, because the mean of its divisors is an integer number (5105702820).

Almost surely, 240231211213 is an apocalyptic number.

It is an amenable number.

40231211213 is a deficient number, since it is larger than the sum of its proper divisors (614411347).

40231211213 is a wasteful number, since it uses less digits than its factorization.

40231211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205147.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 40231211213 its reverse (31211213204), we get a palindrome (71442424417).

The spelling of 40231211213 in words is "forty billion, two hundred thirty-one million, two hundred eleven thousand, two hundred thirteen".

Divisors: 1 67 2971 199057 202109 13541303 600465839 40231211213