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31011012002 = 247536224611
BaseRepresentation
bin11100111000011001…
…100111110110100010
32222001012200122010002
4130320121213312202
51002002304341002
622125105340002
72145324152465
oct347031476642
988035618102
1031011012002
11121739a9343
126015637602
132c02989659
1417028212dc
15c17783002
hex738667da2

31011012002 has 16 divisors (see below), whose sum is σ = 48402582912. Its totient is φ = 14889267120.

The previous prime is 31011011963. The next prime is 31011012029. The reversal of 31011012002 is 20021011013.

It is an unprimeable number.

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, 3107324 + ... + 3117287.

It is an arithmetic number, because the mean of its divisors is an integer number (3025161432).

Almost surely, 231011012002 is an apocalyptic number.

31011012002 is a deficient number, since it is larger than the sum of its proper divisors (17391570910).

31011012002 is a wasteful number, since it uses less digits than its factorization.

31011012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6224713.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 31011012002 its reverse (20021011013), we get a palindrome (51032023015).

The spelling of 31011012002 in words is "thirty-one billion, eleven million, twelve thousand, two".

Divisors: 1 2 47 53 94 106 2491 4982 6224611 12449222 292556717 329904383 585113434 659808766 15505506001 31011012002