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31030120324 = 2271108218583
BaseRepresentation
bin11100111001100010…
…100000111110000100
32222002112122102210201
4130321202200332010
51002022202322244
622131031100244
72145645446050
oct347142407604
988075572721
1031030120324
111218376a745
12601bb11684
132c06919c58
141705196c60
15c192a9ad4
hex7398a0f84

31030120324 has 12 divisors (see below), whose sum is σ = 62060240704. Its totient is φ = 13298622984.

The previous prime is 31030120301. The next prime is 31030120339. The reversal of 31030120324 is 42302103013.

31030120324 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554109264 + ... + 554109319.

Almost surely, 231030120324 is an apocalyptic number.

It is an amenable number.

31030120324 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31030120324 is a wasteful number, since it uses less digits than its factorization.

31030120324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108218594 (or 1108218592 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31030120324 its reverse (42302103013), we get a palindrome (73332223337).

It can be divided in two parts, 310301 and 20324, that added together give a square (330625 = 5752).

The spelling of 31030120324 in words is "thirty-one billion, thirty million, one hundred twenty thousand, three hundred twenty-four".

Divisors: 1 2 4 7 14 28 1108218583 2216437166 4432874332 7757530081 15515060162 31030120324