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400112331031 = 7515931107881
BaseRepresentation
bin1011101001010001000…
…11011010100100010111
31102020202111221101012101
411310220203122210113
523023412224043111
6503450431502531
740623104461510
oct5645043324427
91366674841171
10400112331031
11144760a86366
1265664987a47
132b9659ab6ca
1415519083a07
15a61b6d6bc1
hex5d288da917

400112331031 has 8 divisors (see below), whose sum is σ = 457280511264. Its totient is φ = 342946469760.

The previous prime is 400112331023. The next prime is 400112331037. The reversal of 400112331031 is 130133211004.

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 400112331031 - 23 = 400112331023 is a prime.

It is a super-2 number, since 2×4001123310312 (a number of 24 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 (400112331037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192790 + ... + 915091.

It is an arithmetic number, because the mean of its divisors is an integer number (57160063908).

Almost surely, 2400112331031 is an apocalyptic number.

400112331031 is a deficient number, since it is larger than the sum of its proper divisors (57168180233).

400112331031 is a wasteful number, since it uses less digits than its factorization.

400112331031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159481.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 400112331031 its reverse (130133211004), we get a palindrome (530245542035).

The spelling of 400112331031 in words is "four hundred billion, one hundred twelve million, three hundred thirty-one thousand, thirty-one".

Divisors: 1 7 51593 361151 1107881 7755167 57158904433 400112331031