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1325431013232 = 243472341250967
BaseRepresentation
bin10011010010011001110…
…110000011111101110000
311200201011120021210001010
4103102121312003331300
5133203440314410412
62452521122310520
7164521262503164
oct23223166037560
94621146253033
101325431013232
114711262868a7
12194a641b8440
1397caba10471
1448218c8aca4
152472688533c
hex13499d83f70

1325431013232 has 80 divisors (see below), whose sum is σ = 3498389517312. Its totient is φ = 432223683840.

The previous prime is 1325431013219. The next prime is 1325431013251. The reversal of 1325431013232 is 2323101345231.

It is a self number, because there is not a number n which added to its sum of digits gives 1325431013232.

It is a congruent number.

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, 5155813 + ... + 5406779.

Almost surely, 21325431013232 is an apocalyptic number.

1325431013232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1325431013232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1749194758656).

1325431013232 is an abundant number, since it is smaller than the sum of its proper divisors (2172958504080).

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

1325431013232 is a wasteful number, since it uses less digits than its factorization.

1325431013232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253366 (or 253360 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 1325431013232 its reverse (2323101345231), we get a palindrome (3648532358463).

The spelling of 1325431013232 in words is "one trillion, three hundred twenty-five billion, four hundred thirty-one million, thirteen thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 47 48 94 141 188 282 376 564 752 1128 2256 2341 4682 7023 9364 14046 18728 28092 37456 56184 110027 112368 220054 250967 330081 440108 501934 660162 752901 880216 1003868 1320324 1505802 1760432 2007736 2640648 3011604 4015472 5281296 6023208 11795449 12046416 23590898 35386347 47181796 70772694 94363592 141545388 188727184 283090776 566181552 587513747 1175027494 1762541241 2350054988 3525082482 4700109976 7050164964 9400219952 14100329928 27613146109 28200659856 55226292218 82839438327 110452584436 165678876654 220905168872 331357753308 441810337744 662715506616 1325431013232