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31423223006 = 272977397101
BaseRepresentation
bin11101010000111110…
…000101010011011110
310000002221100010022022
4131100332011103132
51003323321114011
622234032420142
72161460663030
oct352076052336
9100087303268
1031423223006
111236565459a
12610b6a7652
132c6a1b4ca6
141741483c50
15c3da598db
hex750f854de

31423223006 has 16 divisors (see below), whose sum is σ = 55725913440. Its totient is φ = 13002712800.

The previous prime is 31423223003. The next prime is 31423223071. The reversal of 31423223006 is 60032232413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31423223003) 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, 38698145 + ... + 38698956.

It is an arithmetic number, because the mean of its divisors is an integer number (3482869590).

Almost surely, 231423223006 is an apocalyptic number.

31423223006 is a deficient number, since it is larger than the sum of its proper divisors (24302690434).

31423223006 is a wasteful number, since it uses less digits than its factorization.

31423223006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77397139.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31423223006 its reverse (60032232413), we get a palindrome (91455455419).

The spelling of 31423223006 in words is "thirty-one billion, four hundred twenty-three million, two hundred twenty-three thousand, six".

Divisors: 1 2 7 14 29 58 203 406 77397101 154794202 541779707 1083559414 2244515929 4489031858 15711611503 31423223006