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3161131405 = 54736173719
BaseRepresentation
bin1011110001101011…
…0000100110001101
322011022020010001221
42330122300212031
522433222201110
61241402003341
7141223113355
oct27432604615
98138203057
103161131405
1113824158a3
127427a6551
133b4bacc73
1421db8bb65
151377c17da
hexbc6b098d

3161131405 has 16 divisors (see below), whose sum is σ = 3876180480. Its totient is φ = 2473748992.

The previous prime is 3161131397. The next prime is 3161131433. The reversal of 3161131405 is 5041311613.

3161131405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3161131405 - 23 = 3161131397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3161131405.

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, 848136 + ... + 851854.

It is an arithmetic number, because the mean of its divisors is an integer number (242261280).

Almost surely, 23161131405 is an apocalyptic number.

It is an amenable number.

3161131405 is a deficient number, since it is larger than the sum of its proper divisors (715049075).

3161131405 is a wasteful number, since it uses less digits than its factorization.

3161131405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7388.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 3161131405 is about 56223.9397854686. The cubic root of 3161131405 is about 1467.6218980165.

The spelling of 3161131405 in words is "three billion, one hundred sixty-one million, one hundred thirty-one thousand, four hundred five".

Divisors: 1 5 47 235 3617 3719 18085 18595 169999 174793 849995 873965 13451623 67258115 632226281 3161131405