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1931875013285 = 572361337116741
BaseRepresentation
bin11100000111001100101…
…110010101001010100101
320211200111200122221202222
4130013030232111022211
5223122440000411120
64035254030042125
7256400443446320
oct34071456251245
96750450587688
101931875013285
11685338098a78
122724b1049345
13110237712449
1469708cb97b7
15353bc2e1525
hex1c1ccb952a5

1931875013285 has 64 divisors (see below), whose sum is σ = 2818305045504. Its totient is φ = 1242636595200.

The previous prime is 1931875013281. The next prime is 1931875013303. The reversal of 1931875013285 is 5823105781391.

It is not a de Polignac number, because 1931875013285 - 22 = 1931875013281 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1931875013281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16490015 + ... + 16606755.

It is an arithmetic number, because the mean of its divisors is an integer number (44036016336).

Almost surely, 21931875013285 is an apocalyptic number.

It is an amenable number.

1931875013285 is a deficient number, since it is larger than the sum of its proper divisors (886430032219).

1931875013285 is a wasteful number, since it uses less digits than its factorization.

1931875013285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117174.

The product of its (nonzero) digits is 1814400, while the sum is 53.

The spelling of 1931875013285 in words is "one trillion, nine hundred thirty-one billion, eight hundred seventy-five million, thirteen thousand, two hundred eighty-five".

Divisors: 1 5 7 23 35 61 115 161 305 337 427 805 1403 1685 2135 2359 7015 7751 9821 11795 20557 38755 49105 54257 102785 116741 143899 271285 472811 583705 719495 817187 2364055 2685043 3309677 4085935 7121201 13425215 16548385 18795301 35606005 39341717 49848407 93976505 163787623 196708585 249242035 275392019 818938115 904859491 1146513361 1376960095 2399844737 4524297455 5732566805 6334016437 11999223685 16798913159 31670082185 55196428951 83994565795 275982144755 386375002657 1931875013285