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31423432201 = 725491761107
BaseRepresentation
bin11101010000111110…
…111000011000001001
310000002221201202021021
4131100332320120021
51003323344312301
622234041112441
72161462523650
oct352076703011
9100087652237
1031423432201
1112365787787
12610b788721
132c6a259285
1417414da197
15c3da9b8a1
hex750fb8609

31423432201 has 8 divisors (see below), whose sum is σ = 35926603200. Its totient is φ = 26923788528.

The previous prime is 31423432181. The next prime is 31423432211. The reversal of 31423432201 is 10223432413.

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-31423432201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31423432211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862711 + ... + 898396.

It is an arithmetic number, because the mean of its divisors is an integer number (4490825400).

Almost surely, 231423432201 is an apocalyptic number.

It is an amenable number.

31423432201 is a deficient number, since it is larger than the sum of its proper divisors (4503170999).

31423432201 is a wasteful number, since it uses less digits than its factorization.

31423432201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763663.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31423432201 its reverse (10223432413), we get a palindrome (41646864614).

It can be divided in two parts, 3142 and 3432201, that added together give a palindrome (3435343).

The spelling of 31423432201 in words is "thirty-one billion, four hundred twenty-three million, four hundred thirty-two thousand, two hundred one".

Divisors: 1 7 2549 17843 1761107 12327749 4489061743 31423432201