Search a number
-
+
31204041132 = 22311317625621
BaseRepresentation
bin11101000011111001…
…111110000110101100
32222112122220112022010
4131003321332012230
51002401213304012
622200202521220
72153156654565
oct350371760654
988478815263
1031204041132
111226295aa50
12606a206210
132c33972a84
14172030b16c
15c296b1c3c
hex743e7e1ac

31204041132 has 48 divisors (see below), whose sum is σ = 81990687744. Its totient is φ = 9150744000.

The previous prime is 31204041103. The next prime is 31204041133. The reversal of 31204041132 is 23114040213.

It is a junction number, because it is equal to n+sod(n) for n = 31204041099 and 31204041108.

It is not an unprimeable number, because it can be changed into a prime (31204041133) 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, 3808719 + ... + 3816902.

It is an arithmetic number, because the mean of its divisors is an integer number (1708139328).

Almost surely, 231204041132 is an apocalyptic number.

It is an amenable number.

31204041132 is an abundant number, since it is smaller than the sum of its proper divisors (50786646612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31204041132 is a wasteful number, since it uses less digits than its factorization.

31204041132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7625670 (or 7625668 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31204041132 its reverse (23114040213), we get a palindrome (54318081345).

The spelling of 31204041132 in words is "thirty-one billion, two hundred four million, forty-one thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 11 12 22 31 33 44 62 66 93 124 132 186 341 372 682 1023 1364 2046 4092 7625621 15251242 22876863 30502484 45753726 83881831 91507452 167763662 236394251 251645493 335527324 472788502 503290986 709182753 945577004 1006581972 1418365506 2600336761 2836731012 5200673522 7801010283 10401347044 15602020566 31204041132