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31241033330132 = 22137262121750929
BaseRepresentation
bin1110001101001110111101…
…01100011010110111010100
311002121121120022212000102102
413012213132230122313110
513043323114013031012
6150235533234301232
76403042633552313
oct706473654326724
9132547508760372
1031241033330132
119a5527a95442a
12360687aa27818
13145802abb6352
147a01073c827a
153929b70632c2
hex1c69deb1add4

31241033330132 has 24 divisors (see below), whose sum is σ = 55091886552360. Its totient is φ = 15500581329920.

The previous prime is 31241033330131. The next prime is 31241033330153. The reversal of 31241033330132 is 23103333014213.

It can be written as a sum of positive squares in 4 ways, for example, as 15641977540036 + 15599055790096 = 3954994^2 + 3949564^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31241033330095 and 31241033330104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31241033330131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9439157 + ... + 12311772.

It is an arithmetic number, because the mean of its divisors is an integer number (2295495273015).

Almost surely, 231241033330132 is an apocalyptic number.

It is an amenable number.

31241033330132 is a deficient number, since it is larger than the sum of its proper divisors (23850853222228).

31241033330132 is a wasteful number, since it uses less digits than its factorization.

31241033330132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21753691 (or 21753689 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 31241033330132 its reverse (23103333014213), we get a palindrome (54344366344345).

The spelling of 31241033330132 in words is "thirty-one trillion, two hundred forty-one billion, thirty-three million, three hundred thirty thousand, one hundred thirty-two".

Divisors: 1 2 4 137 274 548 2621 5242 10484 359077 718154 1436308 21750929 43501858 87003716 2979877273 5959754546 11919509092 57009184909 114018369818 228036739636 7810258332533 15620516665066 31241033330132