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130444431432 = 2337776454949
BaseRepresentation
bin111100101111100011…
…0000001000001001000
3110110200220012200221020
41321133012001001020
54114122233301212
6135531512512440
712265351241550
oct1713706010110
9413626180836
10130444431432
1150359532037
12213456ab720
13c3baca1a03
146456518160
1535d6da1d8c
hex1e5f181048

130444431432 has 32 divisors (see below), whose sum is σ = 372698376000. Its totient is φ = 37269837504.

The previous prime is 130444431413. The next prime is 130444431451. The reversal of 130444431432 is 234134444031.

It is an interprime number because it is at equal distance from previous prime (130444431413) and next prime (130444431451).

It is a junction number, because it is equal to n+sod(n) for n = 130444431393 and 130444431402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388227307 + ... + 388227642.

It is an arithmetic number, because the mean of its divisors is an integer number (11646824250).

Almost surely, 2130444431432 is an apocalyptic number.

130444431432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130444431432 is an abundant number, since it is smaller than the sum of its proper divisors (242253944568).

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

130444431432 is a wasteful number, since it uses less digits than its factorization.

130444431432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776454965 (or 776454961 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 130444431432 its reverse (234134444031), we get a palindrome (364578875463).

The spelling of 130444431432 in words is "one hundred thirty billion, four hundred forty-four million, four hundred thirty-one thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 776454949 1552909898 2329364847 3105819796 4658729694 5435184643 6211639592 9317459388 10870369286 16305553929 18634918776 21740738572 32611107858 43481477144 65222215716 130444431432