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400131014420231 = 1987192415360371
BaseRepresentation
bin101101011111010101100001…
…0111110100110011100000111
31221110202011002101000020201022
41122332223002332212130013
5404421221304142421411
63535001352252421355
7150165340356060143
oct13276530276463407
91843664071006638
10400131014420231
11106548679278756
1238a640a317785b
131423626763b233
1470b4631736223
15313d4d5070edb
hex16beac2fa6707

400131014420231 has 8 divisors (see below), whose sum is σ = 421238848876800. Its totient is φ = 379028010701880.

The previous prime is 400131014420183. The next prime is 400131014420239. The reversal of 400131014420231 is 132024410131004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-400131014420231 is a prime.

It is a super-2 number, since 2×4001310144202312 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400131014420231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400131014420239) 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, 1207514525 + ... + 1207845846.

It is an arithmetic number, because the mean of its divisors is an integer number (52654856109600).

Almost surely, 2400131014420231 is an apocalyptic number.

400131014420231 is a deficient number, since it is larger than the sum of its proper divisors (21107834456569).

400131014420231 is a wasteful number, since it uses less digits than its factorization.

400131014420231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415369109.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 400131014420231 its reverse (132024410131004), we get a palindrome (532155424551235).

The spelling of 400131014420231 in words is "four hundred trillion, one hundred thirty-one billion, fourteen million, four hundred twenty thousand, two hundred thirty-one".

Divisors: 1 19 8719 165661 2415360371 45891847049 21059527074749 400131014420231