Search a number
-
+
31231022244130 = 255994915577277
BaseRepresentation
bin1110001100111100010011…
…11111001010000100100010
311002120122201122020011011101
413012132021333022010202
513043142113143303010
6150231200014105014
76402236562665542
oct706361177120442
9132518648204141
1031231022244130
119a51002958335
1236049461ab16a
1314570c3b16c17
1479d8379bb322
153925cd21573a
hex1c6789fca122

31231022244130 has 32 divisors (see below), whose sum is σ = 57174684598080. Its totient is φ = 12279377023680.

The previous prime is 31231022244083. The next prime is 31231022244157. The reversal of 31231022244130 is 3144222013213.

It is a super-2 number, since 2×312310222441302 (a number of 28 digits) contains 22 as substring.

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, 2811052 + ... + 8388328.

It is an arithmetic number, because the mean of its divisors is an integer number (1786708893690).

Almost surely, 231231022244130 is an apocalyptic number.

31231022244130 is a deficient number, since it is larger than the sum of its proper divisors (25943662353950).

31231022244130 is a wasteful number, since it uses less digits than its factorization.

31231022244130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586834.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31231022244130 its reverse (3144222013213), we get a palindrome (34375244257343).

The spelling of 31231022244130 in words is "thirty-one trillion, two hundred thirty-one billion, twenty-two million, two hundred forty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 59 118 295 590 9491 18982 47455 94910 559969 1119938 2799845 5577277 5599690 11154554 27886385 55772770 329059343 658118686 1645296715 3290593430 52933936007 105867872014 264669680035 529339360070 3123102224413 6246204448826 15615511122065 31231022244130