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40823137231 = 2511489109229
BaseRepresentation
bin100110000001001111…
…111010001111001111
310220101000221020111121
4212001033322033033
51132101210342411
630430501301411
72643430640542
oct460117721717
9126330836447
1040823137231
1116349662248
127ab3704867
133b07776806
141d93a3a859
1510dddce571
hex9813fa3cf

40823137231 has 8 divisors (see below), whose sum is σ = 41013680400. Its totient is φ = 40632816000.

The previous prime is 40823137171. The next prime is 40823137247. The reversal of 40823137231 is 13273132804.

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-40823137231 is a prime.

It is a super-2 number, since 2×408231372312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40823137261) 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, 319125 + ... + 428353.

It is an arithmetic number, because the mean of its divisors is an integer number (5126710050).

Almost surely, 240823137231 is an apocalyptic number.

40823137231 is a deficient number, since it is larger than the sum of its proper divisors (190543169).

40823137231 is a wasteful number, since it uses less digits than its factorization.

40823137231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110969.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 40823137231 in words is "forty billion, eight hundred twenty-three million, one hundred thirty-seven thousand, two hundred thirty-one".

Divisors: 1 251 1489 109229 373739 27416479 162641981 40823137231