Search a number
-
+
160992531 = 3274754371
BaseRepresentation
bin10011001100010…
…00110100010011
3102012221021020100
421212020310103
5312203230111
623550343443
73663261660
oct1146106423
9365837210
10160992531
1182970087
1245abab83
132747a46b
141754aa67
15e201756
hex9988d13

160992531 has 24 divisors (see below), whose sum is σ = 271425024. Its totient is φ = 90036720.

The previous prime is 160992451. The next prime is 160992541. The reversal of 160992531 is 135299061.

It is not a de Polignac number, because 160992531 - 214 = 160976147 is a prime.

It is a super-2 number, since 2×1609925312 = 51837190075571922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (160992541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24225 + ... + 30146.

It is an arithmetic number, because the mean of its divisors is an integer number (11309376).

Almost surely, 2160992531 is an apocalyptic number.

160992531 is a deficient number, since it is larger than the sum of its proper divisors (110432493).

160992531 is a wasteful number, since it uses less digits than its factorization.

160992531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54431 (or 54428 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 160992531 is about 12688.2832172048. The cubic root of 160992531 is about 544.0037699331.

The spelling of 160992531 in words is "one hundred sixty million, nine hundred ninety-two thousand, five hundred thirty-one".

Divisors: 1 3 7 9 21 47 63 141 329 423 987 2961 54371 163113 380597 489339 1141791 2555437 3425373 7666311 17888059 22998933 53664177 160992531