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53135431352 = 236641928919
BaseRepresentation
bin110001011111000111…
…100101011010111000
312002011002200120211222
4301133013211122320
51332310132300402
640224324411212
73560513500013
oct613707453270
9162132616758
1053135431352
1120597625033
12a36ab46b08
13501a521c53
142800d0c37a
1515aec8b7a2
hexc5f1e56b8

53135431352 has 8 divisors (see below), whose sum is σ = 99628933800. Its totient is φ = 26567715672.

The previous prime is 53135431351. The next prime is 53135431373. The reversal of 53135431352 is 25313453135.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53135431351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3320964452 + ... + 3320964467.

It is an arithmetic number, because the mean of its divisors is an integer number (12453616725).

Almost surely, 253135431352 is an apocalyptic number.

It is an amenable number.

53135431352 is a deficient number, since it is larger than the sum of its proper divisors (46493502448).

53135431352 is a wasteful number, since it uses less digits than its factorization.

53135431352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6641928925 (or 6641928921 counting only the distinct ones).

The product of its digits is 81000, while the sum is 35.

Adding to 53135431352 its reverse (25313453135), we get a palindrome (78448884487).

The spelling of 53135431352 in words is "fifty-three billion, one hundred thirty-five million, four hundred thirty-one thousand, three hundred fifty-two".

Divisors: 1 2 4 8 6641928919 13283857838 26567715676 53135431352