Search a number
-
+
31032322130 = 2543129155901
BaseRepresentation
bin11100111001101010…
…111010100001010010
32222002200210022010002
4130321222322201102
51002023233302010
622131150210002
72146003246235
oct347152724122
988080708102
1031032322130
1112184a33a17
1260207b3902
132c0720b1b4
1417055ab41c
15c195921a5
hex739aba852

31032322130 has 32 divisors (see below), whose sum is σ = 57202504128. Its totient is φ = 12114648000.

The previous prime is 31032322091. The next prime is 31032322151. The reversal of 31032322130 is 3122323013.

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, 527180 + ... + 583080.

It is an arithmetic number, because the mean of its divisors is an integer number (1787578254).

Almost surely, 231032322130 is an apocalyptic number.

31032322130 is a deficient number, since it is larger than the sum of its proper divisors (26170181998).

31032322130 is a wasteful number, since it uses less digits than its factorization.

31032322130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57242.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31032322130 its reverse (3122323013), we get a palindrome (34154645143).

The spelling of 31032322130 in words is "thirty-one billion, thirty-two million, three hundred twenty-two thousand, one hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 1291 2582 6455 12910 55513 55901 111026 111802 277565 279505 555130 559010 2403743 4807486 12018715 24037430 72168191 144336382 360840955 721681910 3103232213 6206464426 15516161065 31032322130