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31420213244130 = 2351761608261263
BaseRepresentation
bin1110010010011100101101…
…01001100011000011100010
311010020202001200110202011110
413021032112221203003202
513104242044042303010
6150454125141524150
76422015113651164
oct711162651430342
9133222050422143
1031420213244130
11a014268286887
123635545a13656
13146bbb49643b9
147a8a6430a934
153974a2778120
hex1c9396a630e2

31420213244130 has 32 divisors (see below), whose sum is σ = 79844306598144. Its totient is φ = 7885857441536.

The previous prime is 31420213244107. The next prime is 31420213244141. The reversal of 31420213244130 is 3144231202413.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30804130122 + ... + 30804131141.

It is an arithmetic number, because the mean of its divisors is an integer number (2495134581192).

Almost surely, 231420213244130 is an apocalyptic number.

31420213244130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31420213244130 is an abundant number, since it is smaller than the sum of its proper divisors (48424093354014).

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

31420213244130 is a wasteful number, since it uses less digits than its factorization.

31420213244130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61608261290.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 31420213244130 its reverse (3144231202413), we get a palindrome (34564444446543).

The spelling of 31420213244130 in words is "thirty-one trillion, four hundred twenty billion, two hundred thirteen million, two hundred forty-four thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 61608261263 123216522526 184824783789 308041306315 369649567578 616082612630 924123918945 1047340441471 1848247837890 2094680882942 3142021324413 5236702207355 6284042648826 10473404414710 15710106622065 31420213244130