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31303013303230 = 2512457251288539
BaseRepresentation
bin1110001111000010011001…
…11111010000001110111110
311002211112112211002212122121
413013201030333100032332
513100332032401200410
6150324223352233154
76410365564621324
oct707411477201676
9132745484085577
1031303013303230
119a79595a3a599
12361689799b7ba
131460b278c8146
147a3106c01d14
153943e351e9da
hex1c784cfd03be

31303013303230 has 16 divisors (see below), whose sum is σ = 56349947363760. Its totient is φ = 12520200117312.

The previous prime is 31303013303207. The next prime is 31303013303239. The reversal of 31303013303230 is 3230331030313.

It is a junction number, because it is equal to n+sod(n) for n = 31303013303195 and 31303013303204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31303013303239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125519700 + ... + 125768839.

It is an arithmetic number, because the mean of its divisors is an integer number (3521871710235).

Almost surely, 231303013303230 is an apocalyptic number.

31303013303230 is a deficient number, since it is larger than the sum of its proper divisors (25046934060530).

31303013303230 is a wasteful number, since it uses less digits than its factorization.

31303013303230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251301003.

The product of its (nonzero) digits is 4374, while the sum is 25.

Adding to 31303013303230 its reverse (3230331030313), we get a palindrome (34533344333543).

The spelling of 31303013303230 in words is "thirty-one trillion, three hundred three billion, thirteen million, three hundred three thousand, two hundred thirty".

Divisors: 1 2 5 10 12457 24914 62285 124570 251288539 502577078 1256442695 2512885390 3130301330323 6260602660646 15651506651615 31303013303230