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31022123042 = 2192393415781
BaseRepresentation
bin11100111001000100…
…000000100000100010
32222001222121010121002
4130321010000200202
51002013130414132
622130143432002
72145520460261
oct347104004042
988058533532
1031022123042
111217a1a8219
1260192b5602
132c05079b31
1417040b45d8
15c1872a262
hex739100822

31022123042 has 16 divisors (see below), whose sum is σ = 49187260800. Its totient is φ = 14633201520.

The previous prime is 31022122993. The next prime is 31022123051. The reversal of 31022123042 is 24032122013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1698809 + ... + 1716972.

It is an arithmetic number, because the mean of its divisors is an integer number (3074203800).

Almost surely, 231022123042 is an apocalyptic number.

31022123042 is a deficient number, since it is larger than the sum of its proper divisors (18165137758).

31022123042 is a wasteful number, since it uses less digits than its factorization.

31022123042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416041.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31022123042 its reverse (24032122013), we get a palindrome (55054245055).

The spelling of 31022123042 in words is "thirty-one billion, twenty-two million, one hundred twenty-three thousand, forty-two".

Divisors: 1 2 19 38 239 478 4541 9082 3415781 6831562 64899839 129799678 816371659 1632743318 15511061521 31022123042