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31234124434 = 2192005140993
BaseRepresentation
bin11101000101101100…
…101110101010010010
32222121202111220211111
4131011230232222102
51002431413440214
622203155403534
72154003451162
oct350554565222
988552456744
1031234124434
1112278937a87
1260782b35aa
132c39c76946
1417242dc5a2
15c2c1555c4
hex745b2ea92

31234124434 has 16 divisors (see below), whose sum is σ = 49320701280. Its totient is φ = 14794012800.

The previous prime is 31234124393. The next prime is 31234124477. The reversal of 31234124434 is 43442143213.

It is a junction number, because it is equal to n+sod(n) for n = 31234124396 and 31234124405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741442 + ... + 782434.

It is an arithmetic number, because the mean of its divisors is an integer number (3082543830).

Almost surely, 231234124434 is an apocalyptic number.

31234124434 is a deficient number, since it is larger than the sum of its proper divisors (18086576846).

31234124434 is a wasteful number, since it uses less digits than its factorization.

31234124434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61065.

The product of its digits is 27648, while the sum is 31.

Adding to 31234124434 its reverse (43442143213), we get a palindrome (74676267647).

The spelling of 31234124434 in words is "thirty-one billion, two hundred thirty-four million, one hundred twenty-four thousand, four hundred thirty-four".

Divisors: 1 2 19 38 20051 40102 40993 81986 380969 761938 778867 1557734 821950643 1643901286 15617062217 31234124434