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31012303002 = 236521379259
BaseRepresentation
bin11100111000011110…
…100011000010011010
32222001022010020000220
4130320132203002122
51002003122144002
622125153140510
72145341140362
oct347036430232
988038106026
1031012303002
111217470028a
126015b5a736
132c0301c165
141702a799a2
15c1793a7bc
hex7387a309a

31012303002 has 16 divisors (see below), whose sum is σ = 62026339680. Its totient is φ = 10337145392.

The previous prime is 31012302973. The next prime is 31012303019. The reversal of 31012303002 is 20030321013.

It is an unprimeable number.

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, 351649 + ... + 430907.

It is an arithmetic number, because the mean of its divisors is an integer number (3876646230).

Almost surely, 231012303002 is an apocalyptic number.

31012303002 is an abundant number, since it is smaller than the sum of its proper divisors (31014036678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31012303002 is a wasteful number, since it uses less digits than its factorization.

31012303002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144477.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31012303002 its reverse (20030321013), we get a palindrome (51042624015).

The spelling of 31012303002 in words is "thirty-one billion, twelve million, three hundred three thousand, two".

Divisors: 1 2 3 6 65213 79259 130426 158518 195639 237777 391278 475554 5168717167 10337434334 15506151501 31012303002