Search a number
-
+
1157354031 = 33171175277
BaseRepresentation
bin100010011111011…
…1101001000101111
32222122202200021010
41010332331020233
54332240312111
6310502040303
740452230001
oct10476751057
92878680233
101157354031
11544329239
12283719093
13155a12492
14ad9cc371
156b914aa6
hex44fbd22f

1157354031 has 16 divisors (see below), whose sum is σ = 1615362048. Its totient is φ = 736159200.

The previous prime is 1157354021. The next prime is 1157354063. The reversal of 1157354031 is 1304537511.

It is a de Polignac number, because none of the positive numbers 2k-1157354031 is a prime.

It is a super-2 number, since 2×11573540312 = 2678936706143897922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1157354031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157354021) 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, 81036 + ... + 94241.

It is an arithmetic number, because the mean of its divisors is an integer number (100960128).

Almost surely, 21157354031 is an apocalyptic number.

1157354031 is a deficient number, since it is larger than the sum of its proper divisors (458008017).

1157354031 is a wasteful number, since it uses less digits than its factorization.

1157354031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175382.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 1157354031 is about 34019.9063931693. The cubic root of 1157354031 is about 1049.9180679834.

The spelling of 1157354031 in words is "one billion, one hundred fifty-seven million, three hundred fifty-four thousand, thirty-one".

Divisors: 1 3 31 71 93 213 2201 6603 175277 525831 5433587 12444667 16300761 37334001 385784677 1157354031