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231141760381 = 71011092999387
BaseRepresentation
bin1101011101000100011…
…1110101110101111101
3211002121200000000200001
43113101013311311331
512241334242313011
6254103550034301
722461623355220
oct3272107656575
9732550000601
10231141760381
118a032552754
1238968aa8991
1318a480c6b1c
14b28a0195b7
15602c4327c1
hex35d11f5d7d

231141760381 has 16 divisors (see below), whose sum is σ = 269225066880. Its totient is φ = 194360212800.

The previous prime is 231141760373. The next prime is 231141760391. The reversal of 231141760381 is 183067141132.

It is a cyclic number.

It is not a de Polignac number, because 231141760381 - 23 = 231141760373 is a prime.

It is a super-2 number, since 2×2311417603812 (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231141760381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231141760361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1422631 + ... + 1576756.

It is an arithmetic number, because the mean of its divisors is an integer number (16826566680).

Almost surely, 2231141760381 is an apocalyptic number.

It is an amenable number.

231141760381 is a deficient number, since it is larger than the sum of its proper divisors (38083306499).

231141760381 is a wasteful number, since it uses less digits than its factorization.

231141760381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999604.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 231141760381 in words is "two hundred thirty-one billion, one hundred forty-one million, seven hundred sixty thousand, three hundred eighty-one".

Divisors: 1 7 101 109 707 763 11009 77063 2999387 20995709 302938087 326933183 2120566609 2288532281 33020251483 231141760381